Cody invests £6500 in a savings account for 5 years. The account pays simple interest at a rate of 1.6% per year.
Work out the total amount of interest Cody gets by the end of the 5 years.

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%

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels