Cayden wants to buy a new bike that costs$ 191. this is $ 25 less than four times what he saved last month for the bike. how much money did cayden save last month to buy this bike?

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 earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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)