A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
x + 2y = -22
-x - y = 16

Add to eliminate y.
O Add to eliminate x.
Subtract to eliminate x.
Subtract to eliminate y.

Analyze the graph of the cube root function shown on the right to determine the transformations of the parent function. then, determine the values of a, h, and k in the general equation.

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122