What is the simplified form of ((15xy^2)/(x^2+5x+6))/((5x^2y)/2x^2 +7x+3))

For which rational expression is -2 an excluded 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 ?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?