Answer:
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Answer:
9:30am
Step-by-step explanation:
Given data
Start time= 8:20am
Folding time= 25min
Time spent on Puzzle= 45min
Total time = 25+45= 70min= 1:10 min
Therefore the time she finishes is
8:20+ 1:10= 9:30 am
Hence she finished by 9:30am
Answer:

Step-by-step explanation:





For the Interval 
Length of the Curve 
Using T1-Calculator

5,10,15,20,25,30 that is 1,2,3,4,5,6 6 of 100 is 18