Solve the system of equations and choose the correct ordered pair.

3x + 2y = 12
6x + 3y = 21

a. (4, 3)
b. (4, 0)
c. (2, 3)
d. (3, 2)

C.

Step-by-step explanation:

We are going to solve it with substitution, that is, we are going to clear one variable and then replace it in the other equation. Then,

Now, we replace that x value in the equation 6x + 3y = 21:

Finally, we replace the y value found to find x.

So, the solution is (x,y)=(2,3). Then, the answer is C.

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: