Answer:
B
Step-by-step explanation:
So we have the expression:

Since 5 goes into both 15 and 50, we can factor out a 5. First, rewrite the numbers as:

Factor out the 5:

So, our answer is B
And we're done!
That would be M = 30G where M is in miles and G is in gallons.
My answer is a and c becuase they equal the same on each side