The probability of an event cannot be less than 0 because 0 means it's impossible. The probability of an event cannot be more than 1 because 1 means that it's certain that it will happen. That's why the probability must be between 0 and 1.
7 7/8 - 3 1/4
7 7/8 = 6.125
3 1/4 = 0.75
so 6.125 - 0.75
= 5.375
as a mixed fraction the answer is 5 3/8
Therefore, the equation of circle is: 
<h3><u>
What is a circle?</u></h3>
- All points in a plane that are at a specific distance from a specific point, the center, form a circle. In other words, it is the curve that a moving point in a plane draws to keep its distance from a specific point constant.
- The radius of a circle is the separation between any point on the circle and its center.
- The radius must typically be a positive integer. Except when otherwise specified, this article discusses circles in Euclidean geometry, namely the Euclidean plane.
- A circle, specifically, is a straightforward closed curve that separates the plane into its inner and exterior.
Here we know that
but we are not given the radius.
However, we can find the radius by using the distance formula.
, where
and 
Putting the values, we get:

The radius comes out to be:

An equation of the circle with center
and radius r is

Now, substituting the values, we get:

Therefore, the equation of circle is:

Know more about circles with the help of the given link:
brainly.com/question/10618691
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The Martin family can drive 99 miles using 3 gallons of gas
Isolate x by adding 8 to both sides.
3 = x/3
Then, multiply by 3 on both sides.
9 = x
To prove that this is right, you can imput 9 into the equation and it equals -5.