Bill and Bob were satisfied with the sales. However, Laura, the office assistant, noticed that the individual prices for each product were not given. Help Laura compute for the individual product prices.

a. Identify the variables that need to be solved and formulate the system of equations needed to determine the individual prices of each product.

b. Use Gauss-Jordan elimination to solve for the variables of the system of equations formulated in a.

Bill and Bob's Hamburgers had a three-day special on hamburgers, french fries, and small drinks. The owners asked that a record of sales be kept. After the sale ended, the manager submitted the follow- ing report: Hamburgers Fries Drinks Sales Day 1 460 350 390 $2055.50 Day 2 510 550 495 $2532.75 Day 3 380 315 355 $1760.25