Y= 18 gallons-2(h)
y is what you're trying to find out and since there are 18 gallons in the tank after every hour you would have 2 less gallons. So, you can multiply how many hours he's been driving by the 2 gallons and subtract it from 18
Answer:
21
Step-by-step explanation:
<h3><u>Fraction to Decimal:</u></h3>
Divide the numerator (upper number) by the denominator (bottom number) on your calculator. Whatever number you get would be your decimal.
<h3><u>Decimal to Percent:</u></h3>
Take your decimal and use your calculator to multiply it by 100. Whatever number you get would be your percent. However, since it is a percent, you need to include the percentage unit.
<h3><u>Demonstration:</u></h3>
1/4 = 0.25
0.25 * 100(%) = 25%
The answer would be D. (3.25 for a burger, and 1.75 for a drink)