Answer:
9 students in music class.
Step-by-step explanation:
In art there are 4 and since there are 8 more 8 + 4 = 12. so there are 12 in Art.
4 x _ = 12. —> 4 x 3 = 12.
so we need to do the same for music class.
For music there are 3.
so we multiply by 3 like we did with the 4.
3 x 3 = _ —> 3 x 3 =9.
so there are 9 students in music class.
Using it's formula, it is found that the monthly payment should be of $688.49 in order to pay off the debt in 15 years.
<h3>What is the monthly payment formula?</h3>
It is given by:

In which:
- n is the number of payments.
For this problem, the parameters are given as follows:
A = 90000, r = 0.045, n = 15 x 12 = 180.
Hence:
r/12 = 0.045/12 = 0.00375.
Then we solve for A to find the monthly payment, as follows.


A = $688.49
More can be learned about the monthly payment formula at brainly.com/question/22846480
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Since Lori passes 80% of her tests you need to make sure that the randomizing device has 80% of the outcomes<span> assigned to passing and 20% of the </span>outcomes<span> assigned to failing. The correct answer is </span><span>Spin a spinner that is split up into 5 sections, where 4 sections are a success of passing a test. Spin the spinner four times.</span>
1) 63-13=s
2) 73-7=?
4) 80-17=?
6) ?-18=74
That's all I know :)
If the tax was 7 cents then each bottle would cost 1.06 each, because tax doesn't mean it's three dollars plus tax which comes to 3.07, it's that if you have a water bottle coming out to 99 cents each and the tax was 7 cents, you add 7 to 99. Which in money, comes out to 1.06 each bottle. So the total bill is 3.18.
I hope this helped! I don't wanna get your answer wrong! >o<