What is the end behavior of the graph of the polynomial function y=7x^12-3x^8-9x^4 ?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Which number line represents the solution set for the inequality -1/2x> 24?

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.