Multiply plz 7(8x + 3)

I will mark brianlest if you can answer all of the questions in the pic.

What are different types of statistical programs

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?

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.