kymairamanoa kymairamanoa 06-01-2023 Mathematics contestada At the movies, my friend bought a drink and popcorn. The total cost of my friend's purchase was $15. The drink cost $6. Which equation represents the total cost of my friend's purchase, along with the cost of the popcorn? 15 - 6 = p; p = 21 p + 15 = 6; p = 9 6 + 15 = p; p = 21 p = 15 - 6; p = 9