Can anyone help me it’s algebra 2

What is 1/2 x (6 x 4)+3 + 2 show your work

What is the difference between regular convex and concave polygons

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?