F(x)=-\dfrac{1}{2}(x-2)(x+8)f(x)=− 2 1 ​ (x−2)(x+8)

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

Carl's candies has determined that a candy bar measuring 3 inches long has a z-score of +1 and a candy bar measuring 3.75 inches long has a z-score of +2. what is the standard deviation of the length of candy bars produced at carl's candies?