Three is twenty-one, divided by the sum of a number and five

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?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10