Please help me this is half my grade I will give 50 points also it’s 64 guest if you couldn’t see it please help.

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Charlie tosses five coins.what is the probability that all five coins will land tails up.