Harvey plans to use 5 ft of shelving for four shelves whose lengths are to be a series of consecutive even numbers. how many inches long should each shelf be? if x represents the length of the shortest shelf, which expression would represent the length of the longest shelf?

a.) x + 3
b.) x + 4
c.) x + 6

Let x be the shortest shelf. The other shelves measures x + 2, x + 4, and x + 6. These lengths should add up to 5 ft or 60 inches
                                    x + x + 2 + x + 4 + x + 6 = 5
The value of x is 12. Therefore, the shelves are 12, 14, 16, and 18 inches long. The longest shelf is x + 6. Thus, the answer is letter C.