X4(-5) when x=-9 help please

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.

The table represents a linear function. what is the slope of the function? –6 –4 4 6

27 is what percent of 108? 27 is % of 108