La sombra que proyecta un edificio es de 16 m. Si el coseno del ángulo que se forma entre la punta de la
16
sombra y el techo del edificio es de
20 , ¿cuál es la
altura del edificio?

An air conditioning system can circulate 350 cubic feet of air per minute. how many cubic yards of air can it circulate per minute?

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?

What is the value of m in the equation 1/2 m - 3/4n=16 when n=8