Answer:
plus and minus
Step-by-step explanation:
example : 3 ± 5 = 8 or -2
Solution: We are given:
Predicted Sales by Sameera 
Actual Sales by Sameera 
Now to find the Percent error, we have to use the below formula:



Therefore, the percent error is
Answer:

Step-by-step explanation:
The total amount of shrimp that was eaten was 12 pieces of shrimp.
To make the fraction you will simply put the amount of shrimp Jeremy ate over the total number of shrimp eaten by the pair.
Therefore, the fraction would look like this:

The decimal form of this would be 0.4167. Which also means that Jeremy ate 41.67% of the total amount of shrimp eaten.
Hope this helps!!