a. The dollar amount on an accounts receivable invoice. b. The net profit for a company in 2017. c. The stock exchange on which a company's stock is traded. d. The national debt of the United States...

Below we list several variables. Which of these variables are quantitative, and which are qualitative?

Extracted text: a. The dollar amount on an accounts receivable invoice. b. The net profit for a company in 2017. c. The stock exchange on which a company's stock is traded. d. The national debt of the United States in 2017. e. The advertising medium (radio, television, or print) used to promote a product.