Mel fills his gas tank with 6 gallons of gas. It cost Mel $21.15. How much would it cost Mel to get 18 gallons of gas?
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$63.54

Step-by-step explanation:

You first need to find how much it costs for one gallon of gas. To do this, you divide the amount of money by the amount of gallons;

$21.15 / 6 gallons = $3.53

For one gallon of gas, it costs $3.53. To find how much 18 gallons would cost, we multiply how much gas/gal costs by 18 gallons.

$3.53 x 18 gallons = $68.54 for 18 gallons of gas

I hope this helps!

answer: given that the roller coaster can accommodate 1600 riders per hour, thus the roller coaster can accomodate 1600 / 60 = 26.67 riders per minute.

given that there are 345 people in the line, the number of minutes it will take for the 345 persons to get into the roller coaster is given by 345 / 26.67 = 12.94 minutes.

therefore, it will take you 12.94 minutes to get to the front of the line.

step-by-step explanation: