Fiona bought some socks that cost $4.95 for each pair and some belts that cost $6.55 each. Fiona spent $27.95 in all. Let a represent the number of pairs of socks purchased and b the number of belts purchased. Which equation models the situation? a plus b equals 11.50 a plus b equals 27.95 4.95 a plus 6.55 b equals 27.95 6.55 a plus 4.95 b equals 27.95