Kendra has a black walnut tree in her yard. To make extra money this fall, she gathers the walnuts off the ground and sells them for $0.45 per pound. If she gathers 53.4 pounds, how much money does she make?

Kendra makes 53.4*0.45 = $<<53.4*0.45=24.03>>24.03. Answer: \boxed{24}.