Answer:
10 units
Step-by-step explanation:
7-7=0
3-(-7)=10
Answer:

Step-by-step explanation:

Answer:
Hope it helps you ,hope it is clear. I used completing the square method.
Answer:
I am pretty sure it is 22m
Step-by-step explanation:
minus 2
Answer:
The simplest form of 1518 is 56.
Step-by-step explanation: