Answer:
C
Step-by-step explanation:
the example of an open equation is :x+9=16
I believe the answer is -25/6 :)
9. 2.86600.... that is all i know so far
So just find the factors of 90
90=2 times 3 times 3 times 5
so the factors could be
2,3,15
2,9,5
6,3,5
10,3,3
there are 4our
