Answer:
1st choice Music Equation: 
Superstar Music Club Equation: 
Solution: 2
Step-by-step explanation:
Given that:
1st choice music club:
Charges for one song = $1
Charges for sign - up = $5
Let the number of songs = 
Total cost = 
Superstar music club:
No sign up fee and
Charges for one song = $3.50
Total cost = 
Given that, cost of each music club becomes equal:
Putting them same:

After 2 songs, the cost of both the clubs will become equal.
Direct Variation. Since k<span> is constant (the same for every point), we can find </span>k<span> when given any point by dividing the y-coordinate by the x-coordinate. For example, if y varies directly as x , and y = 6 when x = 2 , the constant of variation is </span>k<span> = = 3 . Thus, the equation describing this direct variation is y = 3x .</span>
Answer: Definitely C (and I'm assuming A since there are 2 answers but I can't see A that well)
Step-by-step explanation: Its not B because B is 7
Its not D because D is 5
Its not E because E is 7
You are looking for -3, so C is the only correct on.
Not sure about A. I can't see it
Pretty much all you have to do is identify 5x <span> 6x with the absolute value of x/
i dont know if im right about this answer but here it is: 5x=6x*6n^3x2n</span>