Question

A whole number is represented by n. which statement is true about n and -n?

Answer 1

Answer is A
You can plug numbers in to check:
a) n=5
5+(-5)=0

b)n=5
5-(-5)=5+5=10

c) n=5
5(-5)=-25

d)n=5
5/-5=-1

Answer 2

Answer: A and B

Explanation: A sum is an answer to an addition problem and a difference is the answer to a subtraction problem. N is the sum to the addition problem and -n is the answer to a subtraction problem.