The sale price of a new compact disc player is $201 at a local discount store. at the store where this sale is going on, each new cd is on sale for $11 each. if kyle purchases a player and some cd's for $289, how many cd's did he purchase?

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?