Part 1: graph piecewise functions from tables and equations. isabel sells new and used mystery novels online. her customers are primarily in the united states. she sends up to 10 pounds of books in one shipment. she uses the united states postal service’s media mail service because it is inexpensive for her customers. current media mail shipping prices for book shipments weighing 10 pounds or less appear below. 
 how much would it cost to ship a package weighing 3.2 pounds? explain how you arrived at your answer. (3 points) what type of graph is needed to represent the media mail shipping prices as a function of the weight of the books shipped? explain your thinking. (3 points) 

 graph the media mail shipping prices as a function of the weight of the books shipped. (10 points)

Ascientist studied a population of workers to determine whether verbal praise and/or tangible rewards affect employee productivity. in the study, some workers were offered verbal praise, some were offered tangible rewards (gift cards, presents, and some were offered neither. the productivity of each participant was measured throughout the study by recording the number of daily tasks completed by each employee. which inference might the scientists make based on the given information? a.) the number of daily tasks completed by each employee may influence the dependent variable, which is whether the employee receives verbal praise, tangible rewards, or neither. b.) verbal praise and/or tangible rewards may influence the independent variable, which is the number of daily tasks completed by each employee. c.) verbal praise and/or tangible rewards may influence the dependent variable, which is the number of daily tasks completed by each employee. d.) the dependent variables, which are verbal praise and tangible rewards, may influence the number of daily tasks completed by each employee.