(Just answer what I have to calculate for A, B, and C) Michelle throws a softball straight up in the air. The function y=-16x2 + 48x +3
describes the height (in feet) of the softball x seconds after it is released.
A. Michelle released the softball at what height? (1 pts.)
B. How many seconds did it take for the softball to reach maximum height?
Show work. (3 pts.)
C. What was the maximum height of the softball? Show work. (3 pts.)

The box plot shows the number of raisins found in sample boxes from brand c and from brand d. each box weighs the same. what could you infer by comparing the range of the data for each brand? a) a box of raisins from either brand has about 28 raisins. b) the number of raisins in boxes from brand c varies more than boxes from brand d. c) the number of raisins in boxes from brand d varies more than boxes from brand c. d) the number of raisins in boxes from either brand varies about the same.

Evaluate the expression for the given value of the variable 7a - 4a for a =8

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?