You want to buy a new phone. the sales prise is $149.the sign says that this is $35 less than the original cost. what is the original cost of the phone?

Need on this geometry question. explain how you did it.

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?

Math each whole number with a rational,exponential expression