7 - 3 1/4 = (turn mixed number to improper fraction
7 - 13/4 = (common denominator is 4)
28/4 - 13/4 =
15/4 or 3 3/4 gallons remain in the tank
Answer: A
Step-by-step explanation:

1. Swap x and y.

2. Solve for the new y.
Add 8

Divide by 2.

Extract the square root.

Answer:
The numbers are 12 and 3.
Step-by-step explanation:
12+3=15
&
3×12= 36
:)
Answer:
6
Step-by-step explanation:
25x+37.5=187.5; x as hours