Leo traveled to the store at a constant speed, and when he returned, he graphed his motion to show the distance he traveled compared to the time he traveled. Which graph could Leo use to show his trip to the store

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.

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

Can any one me with the answers to these questions asap?