The table displays the scores of students on a recent exam. Find the mean of the scores to the nearest 10th.
Score Number of Students
55
8
60
5
65
4
70
8
75
2
80
4
85
1
90
7

Which of the following is the rational exponent expression of 6 root f

After applying the composition r0.90 ry to rs what are the coordinates of r' and s'? a. r'(–3, 1),  s'(–3, 5)b. r'(–1, 3),  s'(–5, 3)c. r'(1, 3),  s'(5, 3)d. r'(5, 3),  s'(1, 3)

Adepartment store purchases screen-printed t-shirts at a cost of $5 per shirt. they mark up the price 150% (making the selling price 250% of the store's purchase price) and put them on the sales floor. every month that a t-shirt doesn't sell, the store reduces the selling price by 25%.