If M is the midpoint of A B find the length of A B
A= (3,7)
M= (-2,4)
B?

How do you use the elimination method for this question? explain, because i really want to understand!

What is the base of 1/9 to the power of 2

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?