Amy launched a ball into the air. The height of the ball can be represented by the equation h = -16t^2 + 96t + 112, where h is the height, in units, and t is the time, in seconds, after the ball was launched. Graph the equation from t = 0 to t = 7 seconds And then the second question is state the coordinates of the vertex and explain its meaning in the context of the problem.

Please help me and show work

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.