5:00 pm was 7 F which was 13 degrees warmer than at 9:00

Will mark brainliest question in the pic.

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%

One integer is 8 times another. if the product is 72, then find the integers