Multiply: (x – 4)(x + 5)
(a) x2  + 5x - 20,
(b) x2  - 4x - 20,
(c) x2  - x - 20,
(d) x2  + x - 20.

Abouncy ball is dropped such that the height of its first bounce is 5.5 feet and each successive bounce is 64% of the previous bounce's height. what would be the height of the 7th bounce of the ball? round to the nearest tenth (if necessary).

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x