Which equation has x = -2 as the solution?
2x + 10 = 14
2x + 8 = 4
3x + 10 = 1
3x – 8 = 7

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?