Step-by-step explanation:
I'm going to assume you meant to write 
in the equation as +1 - 1 wouldn't make much sense since they would just cancel out.
a. 
b. 
c. 
Answer
x, y
0, -4
1, -1
2, 2
3, 5
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Answer:
24
Step-by-step explanation:
if you count the numbers, the longer side is 7 and the other is 5
7+7 and then add 5+5
14+10
24
First, you take 36 counters and spread them out. You then separate them into groups of 8 and any left that cannot be separated into groups of 8 are the remainders. When you do this, you will find that you are able to separate 36 into 4 groups of eight, and you will get a remainder of 4, so your answer is 4 remainder 4
