The diameter of the circle is needed. But to solve, you would simply multiply the diameter of the circle by pi (3.14).
Answer:
10
Step-by-step explanation:
6 is the width not the length
First of all, we need to deduce the price of a single camera:

Now, we know that he profits 36 dollars from each camera. So, we are asking: which percentage of 150 is 36? We have

This equation literally says: 36 is x-percent of 150. And we need to solve for x:

Answer:
75 vitamins = 18 dollars
Step-by-step explanation:
25 vitamins are equal 6 dollars