Please hurry and help me

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?

There were 34 coins in a bag. jim took 15 coins out of the bag. rose put 17 coins into the bag. how many coins are now in the bag?

Sara borrowed $5,000 from her father at a simple interest rate of 12.5% per year. over a two - year period, she made equal monthly payments to pay back the loan plus the interest on the loan. about how much was her monthly payment