1. Solve the system by Gaussian elimination:
2. At a competing cupcake store, $2,380 worth of cupcakes are sold daily. The chocolate cupcakes cost $2.50 and the red velvet cupcakes cost $1.25. If the total number of cupcakes sold per day is 1240, how many of each flavor are sold each day?
3. Graph the system of inequalities given by y ≥ 2x – 1
4. Write the augmented matrix for the linear system, 5x + 4y = 2 and 2x + 3y = 9.
5. Graph the system of inequalities given by 2x + 3y < 5 and y > 1.
6. A survey of athletes revealed that for their minor aches and pains, 30 used aspirin, 50 used Ibuprofen, and 15 used both. No athletes reported using neither. How many athletes were surveyed?
