In the problem 10 take away 4 equals 6 what is the correct term for the number 4

Melissa is purchasing a $160,000 home and her bank is offering her a 30-year mortgage at a 4.9% interest rate. in order to lower her monthly payment, melissa will make a 20% down payment and will purchase 3 points. what will her monthly mortgage payment be? a. $645.98 b. $650.46 c. $662.93 d. $606.69

The dimension of the rectangular pool shown below are 40 yards by 20 yards

What classification best describes 5x+10y+15z=60 2x+4y+6z=60 x+2y+3z=60