Answer:

Step-by-step explanation:
If the given polygon is a regular polygon, its sides are equal.
This means:

Subtract
to both sides
4 = x
OR
x = 4
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Hope this helped!
<h3>~AH1807</h3>
(3*4)+(1*7)/7*4 = 12+7/28 = 19/28
your answer is 19/28
Answer:
1. ?
2. 1/10
3. 1/8
Step-by-step explanation:
number 3 result in decimals is 0.125
Answer:
no u
Step-by-step explanation: no no no no no no no no no
Answer:
11 music lessons.
Step-by-step explanation:
We know that membership costs $165 and members pay $25 per music lesson.
So, we can write the following expression:

The 165 represents the one-time membership fee and the 25m represents the cost for m music lessons.
We know that non-members pay no membership fee but their cost per lesson is $40. So:

Represents the cost for non-members for m music lessons.
We want to find how many music lessons would have to be taken for the cost to be the same for both members and non-members. So, we can set the expressions equal to each other:

And solve for m. Let's subtract 25m from both sides:

Now, divide both sides by 15:

So, at the 11th music lesson, members and non-members will pay the same.
Further Notes:
This means that if a person would only like to take 10 or less lessons, the non-membership is best because there is no initial fee.
However, if a person would like to take 12 or more lessons, than the membership is best because the membership has a lower cost per lesson than the non-membership.
And we're done!