Grace loves to download new music. she 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. which equation should she use?

(a) a104 = 104 + 3(47 - 1)
(b) a104 = 104 + 3(47 + 1)
(c) a104 = 47 + 3(104 - 1)
(d) a104 = 47 + 3(104 + 1)

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:

)

what is the approximate angle of acb if abc is 25cm and the length of segment bc is 15

step-by-step explanation: