Braxton loves downloading new music he originally had 41 songs but plans to purchase 4 new songs each week. he wants to know how many new songs he will have after 110 weeks. which equation should he use? a)a110=41+4(110-1) b)a110=41+4(110+10 c)a110=110+4(41-1) da110=110+4(41+1)

Step-by-step explanation:

He already has songs = 41

Since we are given that he purchase four songs every week .

So, in first week he purchase songs = 4

Initially he already has 41 songs

So, total songs after 1 week =

After 2 weeks he will have songs =

This forms an arithmetic sequence  : 41,45,49......

Formula of nth term in A.P. :

a = first term = 41

d = common difference = 45-41=49-45=4

Since we are required to find the new songs after110 weeks

So, n =110

Substituting values :

Thus Option A is correct.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.