Me pueden ayudar con el ejercicio 1 por favor? Es para una tarea

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?

Solving algebraic equations 2m+3=11

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).