could you guys help these questions are super stressful!!!!!!!!! (BE QUICK AS POSSIBLE)

Answer:
21 Miles per Gallon
Step-by-step explanation:
I assume you just have to change it into equal/equivalent fractions
[tex]\frac{7 mi}{1/3 gal}[/tex]
For the divison fraction, divide both the numerator and denominator by 1/3
[tex]\frac{7 / \frac{1}{3} }{\frac{1}{3}/\frac{1}{3} }[/tex], this equals to around [tex]\frac{21}{1}[/tex] (This'll make sense in a bit)
For the multiplication problem, Multiply both the numerator and denominator by 3
[tex]\frac{7 *3}{\frac{1}{3}*3 }[/tex], this also equals to around [tex]\frac{21}{1}[/tex]
Since both the division and multiplication both totaled to [tex]\frac{21}{1}[/tex]
[tex]\frac{21 mi}{1 gal}[/tex]
= 21 miles per gallon
Hope this helps!