True or False: X=3 is the solution to 2x+10/5=4.

1. True
2. False

2x + 10/5 = 4

If the *divided by 5* is for the whole expression
2x + 10 = 20
2x = 20 - 10
2x = 10
x = 10/2 = 5 [false]

If *divided by 5* is only for 10
2x + (10/5) = 4
2x + 2 = 4
2x = 4-2
x = 2/2
x = 1 [false]

Answer will be false in both cases but i gave the solution to make you understand.
Hope it helps.

All u do is divide 11.20 by 4 which is 2.8 which is 2.8 so each gallon costs $2.8.