Well, as far as I can tell, the mean (average) is the best representation of the data because there is no outlier (a number a lot higher or lower than the rest of the numbers that throws the data off).
Answer:
no
Step-by-step explanation:
Its not possible to make 5 pieces with only 2 cuts. Anyway you use your two cuts would not result in 5 pieces
Answer:

Step-by-step explanation:
By the definition of a log, 
Answer:
40
Step-by-step explanation:
all those numbers added equals 37.21
front end estimation is where you round to the first number on the left just ignore the decimal point in this case. so the answer would be 40