For 25 points

Which of the equations is the correct representation of the following word problem?

A student's grades are 92, 73, 87, and 91. What is the average of the student's grades?

(92 + 73 + 87)/3 = x

4(92 + 73 + 87 + 91) = x

(92 + 73 + 87 + 91)/4 = x

(92 + 73 + 87 + 91)/5 = x

im pretty sure its the one below or above mine

Step-by-step explanation:

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right

if you was gonna solve for a, a is a   < -12