3 pounds of peanuts for 7.50 how much is the cost per pound

Let w=23 . what is the value of w + 45 ?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

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?