45. Test data is normally distributed with a mean score of 83 and standard deviation 4. If 70 students took the test, find the number expected to fall within each of the following ranges: a. 79 and 91 c. above 80 b. 80 and 90 d. below 60​

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99