Subtract 18y^4-5y^2+y from 7y^4+3y^2+2y.

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)