Please help me with this problem

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.

Which one is true about the hexagons ?

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is