The interior angles of a pentagon measure x, (2x), (2.5x), (x + 10), and (2x + 20). Determine the value of x.

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 ?

What is the frequency of the sinusoidal graph?

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.