Please help! Thank you :) also don't spam for points I know a moderator

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?

How can you find the mean absolute deviation (mad) for this set of data?

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?