Answer:
-13
Step-by-step explanation:
sum of them=-33
the average is -3, thus the middle integer is -3
counting back 5 times, by twos, you get -13
we can confirm this by counting forwards, and getting 10
10=-13=-3
3/4 =3/4
4/6= 2/3
8/18= 4/9
9/15=3/5
7/21= 1/3
10/12= 5/6
4/8= 1/2
10/16=5/8
15/20= 3/4
3/30=1/10
