Number 2. i don't understand pls :

Solve the problem by making up an equation. a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 3 times the age of the child?

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Ron has 8 caps and 4 of his caps are blue. thes rest of his cap are red. how many of ron's caps are red