I need help on this as fast as possible will mark brainliest

Anormally distributed data set has a mean of 176.3 and a standard deviation of 4.2. what is the approximate z-score for the data value of 167.9? 2.00 −2.00 8.4 −8.4

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Mr. thompson is on a diet. he currently weighs 260 pounds. he loses 4 pounds per month. what part of the story makes the relationship not proportional?