What is the answer for 14m^2+11mr-15r^2

Explain how you can use the associative property to evaluate (7x50)x4.

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

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265