Which unit of measurement would be the most appropriate to measure how much water is in a lake?

a : liter

b : kiloliter

c : gram

d : kilometer

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95

What is the approximate difference in tenths between √12 and √15?