What is the expression for the sentence below? Let k = number of comic books.

Each comic book costs $2.50. Thomas spent $15 on comic books. How many comic books did he buy?

(1 point)
Responses

2.50 + 15 = k
2.50 + 15 = k

15 - 2.50 = k
15 - 2.50 = k

15k = 2.50
15k = 2.50

2.50k = 15