Try 4.5?? dont you multiply both sides by the denominator?
9 is the answer fellow user
Answer:

Step-by-step explanation:

To add the two fractions, you need a common denominator. In this case, the lowest common denominator (LCD) is 9y. That's because 9y is divisible by both 3y and 9y.
The first fraction must be changed so that its denominator is 9y. Do this by multiplying both numerator and denominator by 3.

Finally, this answer can be simplified ("reduced") by dividing both numerator and denominator by 3, their greatest common factor.
I don’t understand, translate it in English and I can help:)
Answer:
96 miles
Step-by-step explanation:
3 multiplied by what gives you 24?
8 right?
So, what you want to do is 8 multiplied by 12.
Doing so you will reach the conclusion that 12 multiplied by 8 equals 96.
So you can go 96 miles on a speedboat with 12 gallons of gas.
I hope this helped you :)