Simplify: 4.1c-(3.2c)-0.1c

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?

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)