I need help. So to get -20 you are supposed to multiple the two numbers we don’t know and to get 19 you are supposed to add up using the same numbers.

What term best describes a line ans a point that lie in the same plane

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?

What is the measure of sty in oo below? 130 310 230 50