Respuesta :

A = 60
 3 Inches multiplied by 20 miles becomes 60 miles

B = 15 miles
 3/4 is .75 so, 0.75 multiplied by 20 becomes 15 miles.

C = 90 miles
 Multiply 20 miles by 4 inches and 0.5 is 1/2 so it's half of 20, 10 miles, 20x4=80 + 10 = 90 Miles.