Answer:
Hence, the equation that represents the number of songs she will have after 104 weeks is:

Step-by-step explanation:
It is given that:
originally had 47 songs but plans to purchase 3 new songs each week. She wants to know how many songs she will have after 104 weeks.
Based on the data we see that:
Initial number of songs she has:

The number of songs she will have after second week is:

After Third week:

and so on:
After 104 weeks she will have:

Hence, option: C is the correct answer.
( This could also be seen as it form an arithmetic progression with initial term as a=47 and common difference i.e. d=3
Hence, the nth term is given by:

)
Answer: could we see the expressions please?
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
are you sure that this is Middle School it seems like Elementary -_-
Answer:
7.19%
Step-by-step explanation:
let i be the effective rate

Answer:
To complete the square, we need to have the equation set up like this:
x^2 +4x =9
To do that, we'd need to move the 4x to the left side producing
4x + x^2 = 9
And that can be rewritten as
x^2 +4x =9
So the term that needs to be moved is -4x
https://www.1728.org/quadr2.htm
Step-by-step explanation: