What table of values goes with the equation y = |-2 x |?

The contents of 3838 cans of coke have a mean of x¯¯¯=12.15x¯=12.15. assume the contents of cans of coke have a normal distribution with standard deviation of σ=0.12.σ=0.12. find the value of the test statistic zz for the claim that the population mean is μ=12.μ=12.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great