Laura earned a 91% on her biology test. The class mean was 82% with a standard deviation of 4. What is Laura's z-score?

In what form is the following linear equation written y=9x+2

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]