Answer both plz, thank you!

Problem 7 (Chapter 6) The life of Sunshine CD players is normally distributed with a mean of 4.1 years and a standard deviation of 1.3 years A CD player is guaranteed for three years. (a) Find the probability that a CD player will break down during the guarantee period. (b) Find the probability that a CD player will last between 2.8 and 6.0 years (c) Find the 70th percentile of the distribution for the time a CD player lasts. Problem 8 (Chapter 6) The percent of fat calories that a person in America consumes each day is normally distributed with a mean of 36 and a standard deviation of 10. (a) Find the probability that the percent of fat calories a person consumes is more than forty (b) Find the maximum number of calories for the first quartile (25%)