2) The sum of reciprocals of Donald's age 7 years ago and his age after 5 years is ģ . How
old is Donald now?

Which inequality has a dashed boundary line when graphed ?

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?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.