Which real-world situation can be modeled by the expression 14 – x? a. robin sold x magazines, and donna sold 14 fewer than robin. b. ella is 14 years old, and her brother matthew is x years older than she is. c. louis bought a t-shirt that cost $14.00, but he had a coupon for x dollars off. d. there are 14 guests at gil’s birthday party, and each guest will take home x party favors.