Which decimal is equivalent to 110?

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

In a timed typing test lara typed 63 words per minute.estimate the number of words she should be able to type in half in hour show your work