hello im having problems with my math

1 Wells College in Aurora,New York was previously an all -girls college.In 2005,the college began to allow boys to enroll. By 2012, the ratio of boys to girls was 3 to 7. if there were 200 more girls then boys in 2012, how many boys were enroll that year? Use a table, graph, or tape diagram to justify your Answer

2. Most television shows use 13 minutes of ever hour for commercials, leaving the remaining 47 minutes for the actual show.One popular television show wants to change the ratio of commercial time to show time to be 3:7.Create two ratio tables, one for the normal ratio of commercials to programming and another for the proposed ratio of commercials to programming. Use the ratio tables to make a statement about which ratio would mean fewer commercials for viewers watching 2 hours of television.

Thank You!