2. What are the means of the following proportion?

3/15 = 12/60

A. 15 and 12

B. 3 and 15

C. 3 and 60

D. 12 and 60

How to find the percent?

An inspector found 40 defective batteries during an inspections. If this is 2.5% of the total number of batteries inspected, how many batteries were inspected?

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Inscribe a square in a circle