The difference of the square of a number and 18 is equal to 3 times that number. Find the positive solution.

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 ?

Find the area of a parallelogram with base 15 yards and height 21 2/3

3.4a=57.8 what is the the value of a