What is 2 4/3 equal to?

Ineed to learn how to solve this problem

Alength on a map is 7.5 inches. thescale is 1 inch: 5 miles. what is theactual distance? a 1.5 miles c 12.5 milesb 2.5 miles d 37.5 miles

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000