May is a waitress at Earl’s. She works 41 hours every week and gets paid $10.25/hr. She averages $450 in tips each week. Determine her estimated average annual earnings.

What situation is an example of an observational study

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?

Precalculus question, image attached.