8:
A line can intersect a circle twice. So, two lines intersect one circle 4 times. Two lines can intersect two circles 8 times.
Hope this helps!
So basically its all the numbers that are can be an answer for example if ur looking at a dice you set of all possible outcomes will be {1,2,3,4,5,6} because a dice has 6 possible out comes
For instance, the formula for the perimeter P of a square with sides of length s is P = 4s. You might need to solve<span> this </span>equation<span> for s, so you can plug in a perimeter and figure out the side length. This process of </span>solving<span> a formula for a given variable is called "</span>solving literal equations<span>".
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The formula for the area of a circle is 
So if we have the first one...
≈78.5
Now you can solve the other ones with this formula! Good luck!
