How to write 35 over 80 in simplest form

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?

You are designing a rectangular pet pen for your new baby puppy. you have 30 feet of fencing you would like the fencing to be 6 1/3 feet longer than the width

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?