Select the sentence with the misplaced modifier. the group of teens agreed that they’d meet at the mall after school. they spotted many interesting shops heading up the escalator. one shop had a great sale on summer clothes, and the teens loaded up their arms with outfits to purchase. the salesperson handed a receipt that was very long to each customer.

It's the third sentence "They spotted many interesting shops heading up the escalator. "

The sentence from the paragraph that has the misplaced modifier is the following: "The salesperson handed a receipt that was very long to each customer". A misplaced modifier is a word, phrase or clause that is improperly separated from the word that it modifies. In the paragraph presented in the question, the last sentence presents a misplaced modifier as the phrase "that was very long" is not placed properly, making the sentence confusing. Is the phrase modifying the receipt or is is talking about the customers?. In order to be fixed the sentence should go" The salesperson handed a very long receipt to each customer.

pretty sure 1.someone's coat was found in the lobby.