WILL MARK BRAINLIEST IF GOTTEN RIGHT

When are two distinct non vertical lines parallel

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

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?