Maria is purchasing a sweater marked 40% off. The original price of the sweater is $60. The sales tax is 6%, what is the total amount she will pay for the sweater?

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?