If jklm is a rectangle, find m

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two