The cost of 5 dresses and 2 belts is $48. The cost of 3 dresses and 2 belts is $32. Find the cost of a dress and a belt. Let x denote the cost of a dress and y denote the cost of a belt.

A: x = $8, y = $4
B: x = $5, y = $4
C: x = $7, y = $10
D :x = $4, y = $5