Answer:
1 hour and 25 min
Step-by-step explanation:
5/4 = 1.25
5ab-ab+9a-7a
ab(5-1)+a(9-7)
4ab+2a
a(4b+2)
Formula for the perimeter of a quarter circle: C = ((pi x 2r) / 4) + 2r
C = ((3.14 x 18) / 4) + 18
C = (56.52 / 4) + 18
C = 14.13 + 18
C = 32.13 miles
Hope this helps! :)
