The sum of the digits of a 5-digit-priced car totals 15. You know that no digit repeats and that the fourth digit of the car is
a 7 (meaning the sum of the remaining four digits is 8). How many different sets of numbers can you pick for the other four digits? Assume each digit can be used only once with no repetitions and you only need to pick the digits--not the order in which they go.
Find the area of the bases, and the total of it is 280. I then subtracted 50 because the "covers" area is 50. That gives you the surface area without the cover
