Answer:
14
Step-by-step explanation:
-21+-13+20=14
This is true because when subtracting negatives by negatives you pretty much add them and then when you add a positive to a negative you are technically removing the negative by the amount you are adding.
In short its kind of like using inverse operation in a way.
Hope this helps and have a nice day
Also may I please have a brainliest!!!
Answer:
See below
Step-by-step explanation:
The mean score and the standard deviation are needed
The answer is 5/3 can I have the some points
Answer:
15$
Step-by-step explanation:
15$
