Mary had a meal the carrington cafe, which cost $19.70. if the tax was 5.5 %, how much did she pay in tax? round to the nearest cent.

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?