Question 872806
(# of gallons)/(# of miles) = (# of gallons)/(# of miles)



(1 gallon)/(20 miles) = (x gallons)/(180 miles)



1/20 = x/180



1*180 = 20x



180 = 20x



20x = 180



x = 180/20



x = 9



It takes 9 gallons of gas to drive 180 miles



(9 gallons)*(3.98 dollars/1 gallon) = 9*3.98 dollars = 35.82



Round to the nearest dollar: 35.82 ---> 36



It costs <font color="red">$36</font> to travel 180 miles