The striton family had a meal catered for a wedding rehearsal dinner. the cost of the dinner was 476.there was a 5% sales tax and they left a 15% tip. what was the total cost including the sales tax and the tip

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?