A farmer is going to divide her 30-acre farm between two crops. The seed for crop A costs $25 per acre. The seed for crop B costs $50 per acre. The farmer can spend at most $1250 on the seed. If crop B brings in a profit of $210 per acre, and crop A brings in a profit of $110 per acre, how many acres of each crop should the farmer plant maximize her profit?
? acres of crop A
? acres of crop B