Answer:
20
Step-by-step explanation:
Answer: I think its B
Step-by-step explanation: My friend answered it.
Answer:
x=-1
Step-by-step explanation:
just like 8/8 is 1 the same concept only you add a negative
The 3rd answer, is correct.
Answer:
about +–1%; between 46.5% and 47.5%
Step-by-step explanation: