PLEASE HELP I DONT UNDERSTAND ANYTHING ABOUT GEOMETRY BUT I NEED THE CREDIT

x+5=2x-7

-x=-12 /÷(-1)

x=12

JK = x+5

JK = 17

simple equations no need to know geometry

24 students divided by 3 chaperones equals 1 chaperone for every 8 students.

A. 72 / 9 = 8 students per chaperone.  This is correct.

B. 16 / 2 = 8 students per chaperone. This is correct.

C. 60 / 6 = 10 students per chaperone. This is not correct.

D. 45 / 5 = 9 students per chaperone. This is not correct.

E. 40 / 8 = 5 students per chaperone. This is not correct.

The 2 correct answers are A and B.