Art an art supply store sells posters for $9 each and picture frames for $15 each. write an expression for the total cost of 6 posters and 6 frames.

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

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?

An internet company charges $8.95 per month for the first 3 months that it hosts your web site. then the company charges $11.95 per month for web hosting. how much money, in dollars, will the company charge for 8 months of web hosting?