The first one is 8 and the second one is 6
Answer:
I am pretty sure it would be B.
Step-by-step explanation:
The reason is because it is not just 6 it is - 6 so when there are two negative numbers they don't subtract they add if it was 6n then it was to be subtracted
21m - 11n + 2m
23m - 11n
20 so -10 from 30 so the 18 is -10 right hope dis helped
Soooooo sorry but I only understood part a and c.
sorry