Answer:
I think A
Step-by-step explanation:
Percent error is calculated using
((Actual - predicted) / actual) * 100
In this case, the actual value of the number of pages he read is 20. The expected value was 23. So simply plug in:
((20 - 23) / 20) * 100 = -15%
Please don’t forget to like and mark brainliest
I would say B, but don't quote me on it