Answer:
20 cm^2
Step-by-step explanation:
Sectioned it off and multiplied the length by the width
Answer:
0
Step-by-step explanation:
8z +12 = 12
8z = 0
z =0
Answer:
○ 
Explanation:
This should help you figure out why this is the answer:

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The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
Answer:
1. 22
2.73
3.15
Step-by-step explanation: