Answer:
As the givens set A contains 24 elements.
Therefore,
The Cardinality of the set A = 24
Step-by-step explanation:
Let the given set is A
A = {x: x is a positive counting number less 25}
The set of natural numbers is often termed as the Counting number set.
-
As the counting numbers are less than 25.
Thus,
Set A will be:
<u>The Cardinality of the set</u>
The Cardinality of the set represents the total number of elements in a given set.
As the givens set A contains 24 elements.
Therefore,
The Cardinality of the set A = 24
Answer:
P=2T-8, if T=12, Preston, P=24-8=16 years old.
Hope this helps ;)
I think this is the graph for your answer, for the next question like this, try to use "Desmos"

Explanation
Step 1
We know that the general equation for a circle is

where
(h,k) is the center of the circel
and r is the radius
then, all we need to do is replace
Let

replace the values

therefore, the answer is

I hope this helps you