The sum of supplementary angles measure is ?

What are the soultion(s) to the quadratic equation 40- x^2=0

What is the y intercept of f(x)=(1/2)^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 ?