Solve the Problem $\$ 3500$ The First Year He Worked $\$ 500$

Multiple Choice

Solve the problem.
-A man earned $\$ 3500$ the first year he worked. If he received a raise of $\$ 500$ at the end of each year, what was his salary during the 15 th year?

A) $\$ 11,000$
B) $\$ 7000$
C) $\$ 10,500$
D) None of these