2* 100 + 2 * 65 = 330 perimeter
100 * 65 = 6,500 area
2*90 + 2*75 = 330 perimeter
90 * 75 = 6,750 area
Answer:

Step-by-step explanation:
You take the decimal of say .48 and pull the it back so it would be 48%
Answer:
(b) 0.251
Step-by-step explanation:
1. Standard deviation equation:

Where X is the mean of the data, and N the amount of data. Then, N=5
2. Estimate the Mean:

3. Caclulate Standard deviation:


Dividing 3,724 by 6 would equal 620.66666666 repeating. Or 620.667
Hope this helped :)