Can you help solve problem 11

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.

Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36