Answer:
5/8 tank
Step-by-step explanation:
if he uses 3/8 of the tank
he has (1- 3/8)
8/8 - 3/8 = 5/8 of the tank left
x=0 true
....................
$7 for the first question
$6.50 for the last one
Answer: 11
plug in 4 any instance you see "x"
f(x) = 3x - 1
f(4) = 3(4) - 1 = 11