Answer:
3
Step-by-step explanation:
Mathematically, the highest degree of a cubic expression is 3
The number of degrees a polynomial has will dictate the number of roots the polynomial will have
Since the degree of the polynomial is 3, then we have that the number of factors it will have is 3
<span> For this case, the first thing we must do is define variables.
We have then:
x: number of songs.
y: total charge
For Treys online music club:
</span>

<span> For Debs online music club:
</span>

<span> Equaling both equations we have:
</span>

<span> Clearing x we have:
</span>

<span>
Substituting the value of x for any of the equations we have:
</span>

<span>
Answer:
The monthly charge will be the same for 5 songs in both clubs.the cost will be $ 24</span>
Pretty sure the first one is C
Answer:
6.25 kg cement, 7.5 L water
Step-by-step explanation:
2.5 kg cement / 4 kg sand = x kg cement / 10 kg sand
x = 6.25
3 L water / 4 kg sand = y L water / 10 kg sand
y = 7.5