The product of a 2 digit number and a 1 digit number other than 1 is greater than 20 and less than 25. what are all the possible combinations of numbers?

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

Solve the equation for x by graphing.2^x – 4 = -4^x + 4

Write the ratio as a fraction in lowest terms 1 1/3 to 1 2/3