Darrius bought 3 gallons of ice cream for $9.50 how much will it cost him if he wants 7 gallons?

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)