A triangle is shown on the coordinate grid. A dilation of ΔPQR will be performed with center (2, 2) and scale factor 3. The result of the dilation will be Δ P ′Q ′R ′ . What will be the coordinates of R′?
(PLEASE HELP I WILL REWARD YOU WITH 10 POINTS IF YOU CAN HELP ME GET THE CORRECT ANSWER.)

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