(n-5)/(n^2-25) how would i write this faction in simplest form?

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).

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Which of the following is the correct ratio for converting kilograms to grams