I just need the answers

uestion 7 (10 points) The amount of milk sold each day by a grocery store varies according to the Normal distribution with mean 126 gallons and standard deviation 10 gallons. . a. (5 points) On a randomly-selected day, what is the probability that the grocery store sells at least 137 gallons? Round your answer to 4 decimal places, if needed. . b. (5 points) Over a span of 7 days (assuming the randomness requirement is not violated), what is the probability that the grocery store sells an average of at least 137 gallons? Round your answer to 4 decimal places, if needed