Solve the Problem $V$ -Shaped Canyon $50,175 \mathrm { ft }$ B) $50,172 \mathrm { ft }$

Multiple Choice

Solve the problem.
-A railroad bridge is built over a $V$ -shaped canyon. If the supports are 7 feet long at each end, the center support is 388 feet long, and the supports increase in length by 3 feet with each support (from 7 feet to 388 feet) , what is the total length of all the supports?

A) $50,175 \mathrm { ft }$
B) $50,172 \mathrm { ft }$
C) $50,169 \mathrm { ft }$
D) $50,165 \mathrm { ft }$