I became Catholic five years ago, I was Raised Mormon as a Child and had heard all of these while I was growing up. Let me answer each one for you, you can do the research. All these answers are easily found.
**1) **Why pray repetitive words using the rosary when the bible specifically states:
“And when you are praying, do not use meaningless…” Matthew 6:7
Meaningless is the key here. Is “Holy, Holy God” is this meaningless?, or “Our Father who”
**2)The Pope taught that Mary is the mediator between God and man. **
“For there is one God, and one mediator also between God and men, the man Christ Jesus.” 1 Timothy 2:5
You learned the Above from the Catholic Church and it is very much true in my life. Christ is the only way to the Father.
I love Mary. Are we not all part of the one body of Christ? Does not Christ share the role of Salvation with each of us? Do we not pray for one another? Christ is the only way, Mary went this way on the merits of Christ.
3) why worship images when it violates the 2nd commandment?
“You shall not make for yourself an idol, or any likeness of what is in heaven above or on the earth beneath or in the water under the earth.” Exodus 20:4
You learned the from the Catholic Faith, as well, from the overflow of the Mass: Our idol is Christ only.
4)Can babies be baptized since they do not first believe?
The bible says
"He who has believed and has been baptized shall be saved; but he who has disbelieved shall be condemned. Mark 16:16
As an adult who did not understand baptism, my faith demanded that I understood the meaning of repentance and belief in my Lord Jesus before I was baptized. My faith demanded that I know the Fathers love, how he has waited for the day for his son to return home asking to be forgiven in order for the healing process to begin. A healing process that was to start late in my life. The demand was a demand from love itself. This love that I had found later in life was passed on to my children at birth because of my Christian wife. My own Children who were baptized as infants, this love they have come to know as the love of Christ Jesus. It was my own son at eight, baptized as an infant that helped lead me to the apostolic faith. While I was in this line waiting with him to his first confession he looked up at me and said “Dad, I have not done anything wrong.” Then a minute later he said “Dad, I have lied.” I looked down at him and said, “go with that” As he came out of confession he took my hand and led me to the Alter where there was a box of sand with candles lit. He took a candle and asked me to light it and I did. Then he knelt down in front of the Alter and began to pray. As I peeked at him from the corner of my eye I realized then that something really special was taking place. My eight year old son was really speaking to God and from his little heart he gave me the courage to start doing the same. My son was forgiven and he knew it. The gift of forgiveness and reconciliation had already become forefront in his life at eight, he was already on the great path of asking for forgiveness and receiving it, in hearing it, he already had come to a knowledge of Christ as healer. I on the other hand would have to wait a bit longer, before my baptism to gain in this life what he had already been given to him as an infant from God. God’s gift of baptism is a gift. It is not earned it is given freely. The demand of repentance and belief shows that this gift is unconditionally given by a God who only wants those who are burdened by sin to be free of it, so that this free gift can be fully understood and appreciated in its fullness of meaning. An infant cannot demand an operation to save his or her life from a life threatening illness. Do we let the child wait until he or she can make this decision? It is best to get to the cancer while it is still small, it is best to start treatment as soon as possible. For 15 hundred years there was just one Christian community, baptism was not baptism into a certain Church, it was baptism into the Christian community, into the one body of Christ, into the death of Christ, in order to come home through the resurrection of Christ.