Hi i need help for this question, what's the slope for this

If the measure of xyz is 81 what is the measure of yz

If you answer right ill give brainliest, : )

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?