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What is 1 + 3 - 2

Does the point (1, sqrt 7) lie on circle shown.

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?

Find the maximum value of p= 4x + 5y subject to the following constraints :