Sometimes customers ask you to wax and detail their car which takes 4 hours. What is your opportunity cost when you wax and detail a car instead of just wash the exterior

What is a rational number between 9.5 and 9.7

An alternative to car buying is to make monthly payments for a period of time, and then return the vehicle to the dealer, or purchase it. this is called

One side of a rectangle is 7 centimeters shorter than six times the other side. find the length of the longer side if we also know that the perimeter of the rectangle is 266 centimeters.