Answer:
½ mph
Step-by-step explanation:
1 mi. = 5280 ft.
2640⁄5280 = ½
I am joyous to assist you anytime.
180
A=1/2*b*h
A= 1/2*8*25
x=15
(10*9)/6=10*x/10
90/6=x
15=x