Sally can paint a room in 44 hours while it takes steve 88 hours to paint the same room. how long would it take them to paint the room if they worked together?

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?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Me n o w. i need t h i s. 10 points