Answer:
80 units
Step-by-step explanation:
The star has 10 sides. If each side is 8 units, then the perimeter is 10(80) because the perimeter is the sum of the lengths. With each length being 8, you could add 8 to itself 10 times, but it is faster to multiply.
Answer:
the mean is 3
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Step-by-step explanation:
Answer:
$30
Step-by-step explanation:
The price of each chemistry class is $30.