Rick rents a car from a company that charges him $25 per day plus 10 cents per mile driven. which expression can represent the amount he owed on a recent rental?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?

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)