Find how far the car can travel on one gallon of gas, by dividing total miles by number of gallons:
105 miles / 7 gallons = 15 miles per gallon.
Now multiply that by the number of gallons to find total miles:
15 miles per gallon x 9 gallons = 135 total miles.
Answer: 45.
Step-by-step explanation:
Option B represents all of the possible values of x.
Substitute the x for 5, so your equation would be 2(5)-4