Answer ?? Please ?? Thx

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

In what organelle does photosynthesis take place?

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?