Question

The Griffin family wants to buy an Xbox One + Kinect Sensor for $399.00. They also want to buy accessories and games. The wireless controllers cost $49.99 each. The headsets each cost $79.00. The games cost $59.99 each. Peter and Lois have a budget and are trying to decide how many of each to buy for their family. Let 𝑥 represent the number of wireless controllers, 𝑦 represent the number of headsets, and 𝑧 represent the number of games. Which of the following algebraic expressions can be used to describe how much the Griffins will spend before sales tax based on the number of accessories an