Does anyone know how to do cost analysis

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?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

Plot the intercepts to graph the equation