Answer:
5 hours
Step-by-step explanation:
:::::::::::::::
$10
0.05x=0.50
x=10
approx 15.5 hours
475/30 = 15.83 miles per hour
245 = 15.83·t
t = 245/15.83
t = 15.5 hours
8
140-122=18
18-10=8
18
36/4=9 9/2=4.5 4.5+4.5+4.5+4.5=18
