The Day after Christmas, a store wanted to get rid of their Christmas trees, so they discounted them all by 25%. Two weeks later they still had some left so they marked it down by 40% if a Christmas tree originally cost $120, What will it cost after the second discount

On a piece of paper graph f(x)=5•(0.4)^x

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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?