Abookstore sells textbooks for $80 each and notebooks for $4 dollars each the bookstore would like to sell $800 in merchandise by the end of the week

Sal is tiling his entryway. the floor plan is drawn on a unit grid. each unit length represents 1 foot. tile costs $1.35 per square foot. how much will sal pay to tile his entryway? round your answer to the nearest cent.

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?

Can someone answer this question? : )