One app charges $3.90 to download and $.79 for each song bought. A second app is free to download and charges $1.09 for each song. How many songs would you have to buy for the apps to cost the same?

Number of songs =

13

Step-by-step explanation:

I hope this helped

13 times .79 = 10.27 + 3.90 = $14.17

13 times 1.09 = $14.17

y= 2x+7

changed to y= 5x +7

as slope is increased from 2 to 5

therefore it would be less steeper

so, option d) is correct