Swimming Pool On a certain hot summer's day, 714 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for adults. The receipts for admission totaled
$1342.50. How many children and how many adults swam at the public pool that day?
There were children at the public pool.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

What is the value of x when x + 7 = 21?

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