Can you please help me find a, b,c?

a.)  30 miles per hour

b.) 40 miles per hour

c.)  36 miles per hour

Step-by-step explanation:

a.)  average speed =  distance / time = 10 miles / 20 minutes = 30 miles /60 minutes  =  30 miles / 1 hour

b.)  average speed = distance / time = 20 miles / 30 minutes = 40 miles/ 60 minutes =  40 miles / 1 hour

c. ) average speed = distance / time = 30 miles / 50 minutes =

30 miles *  (6/5) / 50 minutes * (6/5) =  36 miles / 60 minutes = 36 miles per hour

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

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people