Solve the problem.A railroad bridge is built over a V-shaped canyon. If the supports are 4 feet long at each end, the center support is 278 feet long, and the supports increase in length by 2 feet with each support (from 4 feet to 278 feet), what is the total length of all the supports?

Question

A. 38,640 feet
B. 38,636 feet
C. 38,634 feet
D. 38,638 feet

Answer 1

Answer: D