Perimeter of shaded region and area of shaded region

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

The equation represents the function f, and the graph represents the function g. f(x)=3(5/2)^x determine the relationship between the growth factors of f and g. a. the growth factor of g is twice the growth factor of f. b. the growth factor of f is twice the growth factor of g. c. the growth factor of f is 2.5 times the growth factor of g. d. the growth factor of f is the same as the growth factor of g.

Im so bad at fractions they are not my best math thing to work on