To find the amount of miles/gallon, we have 540 miles/18 gallons=30 miles/gallon. As we add 30 miles for every gallon, the amount of miles traveled is 30*x (e.g. if x is 1 then 0+30=30 and if x is 2 then 30+30 (2 times)=60) with x being the amount of gallons. For b, we just plug 12 in for x to get 20*12=360
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Step-by-step explanation:
This is not a question we need to at least know it’s equation.
When the woman trade in 40 miles to the gallon and got a car for 38 the percent of decrease in mileage is 2% in mileage.
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