Answer:
254.34
Step-by-step explanation:
area = 
area B = 3.14 x
= 254.34
She answered 70% questions correctly
Further explanation:
Percetages are used to calculae the success or failure in tests or exams usually.
Given

The percentage will be calculated as follows:

She answered 70% questions correctly
Keywords: Percentage, Success rate
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Milligrams, because you have more units
In order to do this we need to make them both fractions, or both decimals. It's much easier to make them both decimals, as you can get

into decimal form by simply dividing 1 by 5.

If 1/5 = .20, then 1/5 is greater than .15!