D. would be the right answer mate
Answer: (You have to do a tiny bit of work, but im practically giving you the answer)
Step-by-step explanation: We’re trying to find out how many gallons of gas it takes to drive 1 mile.
1. So, 8 divided by 272= 0.02941176
2. Simplify 0.02941176 and you have your answer!
That's 21.
Hope this helps !
Nyway
Answer:
The blank is 3
Step-by-step explanation:
1 - Give the blank a variable
x = our blank
2 - Write it out

3 - Get the denominators equal

4 - Simplify

5 - Solve for the numerators
30+7x = 51
-30 -30
7x = 21
x = 3