Find the present value of the ordinary annuity Payments of S

Find the present value of the ordinary annuity. Payments of S84 made quarterly for 10 years at 8% compounded quarterly Solve the system of equations by substitution. x - 3y = 9 y = -1 (-1, 6) (12, -1) (6, -1) Solve the system of equations by elimination. x - 5y =35 5x - 4y = 28 (1,-8) (1, - 7) (7, 0 ) Perform the indicated row operations on the following matrix. Identify the row operation that produces the resulting matrix.

Solution

12.) 6,-1

13.)0,-7