Solve the system of equations by finding the reduced row-echelon form of the augmented matirix for the system of equations. a. (-3,7,3) c. (-9,1,-3) b. (1,1,-9) d. (3,7,-3) Please select the best answer from the choices provided A B C D Mark this and return

a.   since the profit made in 2012 is equal to the profit made in 2014, the profit is symmetric about the line y = 120,000.

step-by-step explanation:

8121 because

130,000 divided by 16 is 8121

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: