Answer:
540 miles/hr and 50 miles/hr respectively
Step-by-step explanation:
Let the speed of plane in still air be x and the speed of wind be y.
ATQ, (x+y)*7.5=4425 and (x-y)*7.5=3675. Solving it, we get x=540 and y=50
she will save $2.25
8.
9.
^#8^
^#9^
0.15 Gallons
9/10 = 0.9 (Conversion)
0.9 ÷ 6 = 0.15
0,42
that should be the answer