Find the values of $x$ and $y$ . Two inclined parallel lines are intersected by an inclined transverse line. The adjacent interior angle above the horizontal line are labeled 48 degrees and y degrees. The interior alternate angle to 48 degrees is labeled left parenthesis 5 times x minus 17 right parenthesis degrees.

$x\ =$
and $y\ =$
.

Can you answer my question? will mark brainiest!

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

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