Which percent change represents a percent increase? A. Original amount = 978 New amount = 118 Percent change = 87% B. Original amount =574 New amount = 678 Percent change = 18% C. Original amount = 1,055 New amount = 1,000 Percent change = 5% D. Original amount = 1,254 New amount= 1,045 Percent change = 17%

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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