Please help me with this problem :)

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 makes a trapezoid an isosceles trapezoid?

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =