Answer:
An equilateral triangle is a triangle where all three sides are equal.
Step-by-step explanation:
Oooooo child i wish i could help
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%
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4-3=1
1+8=9
The answer is 9
