Find the perimeter of a rectangle that has a length of x + 3 and a width of 2x - 7

Find the solution of system of equation y= x-4 y=4x+2

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 ?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)