Hey I need help on these 4 questions Make sure that you put what question number by the answer

Answer:
Step-by-step explanation:
#8- No, because you cannot make equivalent fractions out of the two fractions.
#9- Cross Multiply: 3v=15, v=5
#10- Yes, equivalent fractions can be made out of these (For 8/3, multiple numerator and denominator by 10 to get fraction 80/30)
#11: Cross Multiply once more. 72=9v, v=8