Who has YT channel I will sub

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?