2x^2+2y^3-6xy + 2x^2+5y^3+12xy

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 ?

Afarmer sells 9.5 kilograms of apples and pears at the farmer's market. 4/5 of the weight is the apples and the rest is the pears. how many kilograms of pears did she sell at the farmers market

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36