Please tutor help me this is all about of application of normal curve areas

B. Answer the following problems. Show your solution Nine hundred thirty-two businessmen accepted the Mayaman Challenge of one of the Philanthropic Filipinos who are willing to give relief goods for our fellow Filipinos affected by the recent pandemic. They will be contributing an average of 135 sacks of rice with a standard deviation of 15 sacks of rice. 1. What is the probability that the businessman will contribute less than 105 sacks of rice? A.98% B. 97.72% C. 2.28% D. 2.0% 2. What is the probability that the businessman will contribute more than 150 sacks of rice? A. 15.87% B. 76.45% C. 80.78% D. 84.13% 3. How many businessmen will contribute a sack of rice between 105 sacks to 145 sacks? A. 534 B.653 C. 676 D. 726 4. To lessen the number of non-numerates in Sta. Catalina National High School, the Mathematics department implemented Project MEAN (Masterful Elimination of All Non- numerates). A student is required to undergo the program if he / she scored below 20 in the numeracy test. If the scores of the students in the numeracy test are normally distributed with a mean of 30.50 and a standard deviation of 9.5, what percentage of the students needed to undergo the program