Answer:
The answer is in the explanation, parentheses are very important
Step-by-step explanation:
(-10)2 you use distribution so it will be -20
and the -102 would just be some number if with out the parentheses
0-7
89-0
13
30 plus 9 is 39
6 minus 3 is 3
39 divided by 3 is 13
