(use the formula sa=6s2 , where sa   is the surface area  and  s  is the edge length  of the cube, to solve this problem.) gavan must paint a cube-shaped box. the edge length of the box is 2 1/2 feet. what is the surface area of the box?

Solve the problem by making up an equation. a man could arrive on time for an appointment if he drove the car at 40 mph; however, since he left the house 15 minutes late, he drove the car at 50 mph and arrive 3 minutes early for the appointment. how far from his house was his appointment?