Solve the problem.Mark has $120 to spend on salmon at $5.00 per pound and/or chicken at $3.00 per pound. If he buys s pounds of salmon and c pounds of chicken, the equation 5s + 3c = 120 must be satisfied. How much salmon did Mark buy if he bought 20 pounds of chicken?
A. 7 lb
B. 16 lb
C. 19 lb
D. 12 lb
Answer: D
Mathematics
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