Mark got 18 out of 25 questions correct on his science test. What percent of the questions did he get correct

72%

Step-by-step explanation:

Turn the denominator to 100.

So: 18/25 times 4 equals 72/100

72/100= 72%

*You turn the denominator into 100 because all percents are out of 100.*

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you