<em>Please</em><em> </em><em>refer</em><em> </em><em>to</em><em> </em><em>the</em><em> </em><em>attached</em><em> </em><em>image</em><em> </em><em>for</em><em> </em><em>the</em><em> </em><em>answer</em>
For this case we have that the total minutes spent in yoga classes last week was 165.
Subtracting the 45 minutes of the Saturday day we have:

Those 120 minutes were distributed in the weekly yoga classes
where each lasted 30 minutes.

So, 4 week yoga classes were held
ANswer:
4 week yoga classes were held
None of the numbers on the list of choices that you posted
with the question meets those conditions.
For this case we propose a system of equations. We have to:
x: Let the variable that represents the number of dimes
y: Let the variable that represents the number of quaters
We know that:
One dime equals 10 cents, $0.10
A quater equals 0.25 cents, $0.25
According to the statement we have:

We multiply the first equation by -0.10:

We have the following equivalent system:

We add the equations:

Approximately 3 quater coins

And two dimes
Answer:
3 quater
2 dimes
Given :
The square of a number, x, is 16 less than eight times the number.
To Find :
The value of x .
Solution :
The mathematical equation with all given data is :

Therefore , the value of x is 4 .
Hence , this is the required solution .