Which represents the inverse of the function f(x) = 4x?

If 20% of a number is 35, what is 50% of that number?

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *

Solve for x. −3/4(x+2)=6 enter your answer in the box