i need help fast

Question

Mercedes can download new songs for $1.39 each. Write an equation to show how many songs she can download for $15.00.

 A.15x = 1.39 

B.15 + x = 1.39 

C.1.39x = 15

 B.1.39 + x = 15

Answer 1

Your answer is C.

($1.39/song)(x songs) = $15 The units are consistent! But the answer is x = 10.79 songs & she can't

download .79 of a song! So she downloads 10 songs with $1.10 left over ?