Could you please help me with question 4.72?

Edu. 4.70 The College Boards, which are administered each year to many thousands of high school students, are scored so as to yield a mean of 513 and a standard deviation of 130. These scores are close to being normally distributed. What percentage of the scores can be expected to satisfy each of the following conditions? a. Greater than 600 b. Greater than 700 C. Less than 450 d. Between 450 and 600 Bus. 4.71 Monthly sales figures for a particular food industry tend to be normally distributed with a mean of 155 (thousand dollars) and a standard deviation of 45 (thousand dollars). Compute the following probabilities: a. P(y 100) c. P(100