A store sells paint sets. Each paint set costs the same amount. During a sale, the store reduces the price of each paint set by $1.35. Yuri speneds $6.88 on 2 paint sers at the sale price. What was the price of 1 paint set before the sale?

Which graph represents the solution of the inequality?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Can someone explain to me how to do