Please help me!! All you have to do is tell me the reasons for 1-5 please!

What is the definition of exponential decay?

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?

The graph of y x3 is translated so that the point (1. 1) is moved to (1, 4). what is the equation of the new graph?