Catagorical and numerical data help lol, thank chu

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?

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq