Salesperson A's compensation for any week is $280 plus 6 percent of the portion of A's total sales above $1,000 for that week. Salesperson B's compensation for any week is 8 percent of B's total sales for that week. For what amount of total weekly sales would both salespeople earn the same compensation?  Choices:
A) $5000 B) $7000 C) $9000 D) $11,000 E) $13,000
280+0.06(x-1000) = 0.08x   0.02x = 220   x = $11,000   The answer is $11,000.
<result>D</result>
Salesperson A's compensation for any week is $280 plus 6 percent of the portion of A's total sales above $1,000 for that week. Salesperson B's compensation for any week is 8 percent of B's total sales for that week. For what amount of total weekly sales would both salespeople earn the same compensation?