1.5 divided by 2.5 Round to the nearest tenth

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.

How many days was the temperature above 90 degrees?

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form