The nitro-methane fuel mixture used to power some experimental cars is 96% nitrogen dioxide and 4% methane. How many gallons of methane are needed to fill a 15-gallone fuel tank?

0.6 gallons of methane are needed to fill a 15-gallone fuel tank.

Step-by-step explanation:

Methane is 4% of the total amount.

The total amount is of 15 gallons. So

0.04*15 = 0.4*1.5 = 0.6

0.6 gallons of methane are needed to fill a 15-gallone fuel tank.

i think it might be a but you might want a second opinion