Brian paid $2.15 for each gallon of gasoline. So $2.15/gallon.
Answer:
a= 
Step-by-step explanation:
to find a isolate it on one side by taking 1/3 by subtraction to the other side
a=
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= 
Answer:
The first. Ariel want to find the difference of a number and 13.
That would be the ratio of 2 corresponding sides
= 6/8
= 3/4 answer