7a)
If n is the amount of sides then there's 38 sides in a polygon with 665 diagonals
7b)
We do the same as 7a) but with 406. We get that 
and 
. A polygon cant have 30.04 sides
The equation for area is Length * Width
In this case the Area would be 3 *2 = 6
The area of the rectangle is 6 meters sq
Hope thise helps!
Answer: 79.2 points
Step-by-step explanation: The word "average" is the same as the word "mean" so to find the average of the points scored in their first 5 games, we want to add up all the points and divide them by the number of games they played which is 5 games.
Let's begin by adding the numbers.
79 + 68 + 86 + 91 + 72
Adding these numbers, we get a sum of 396.
This will be divided by how many games they played which is 5.
396 ÷ 5 = 79.2
This means that the average number of points scored is 79.2 points which could round down to 79 points but don't round unless the problem asks.
I’m not sure if this was what you wanted but I used an app to calculate it.
