Having trouble getting these answers. ..

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)

Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? \ 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x