How many blocks do you need to add to square 6 to get 7? to square 9 to get square 10? to square 19 to get square 20? explain

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?

Find cot x if sin x cot x csc x = √2

Predict which statements are true about the intervals of the continuous function. check all that apply