14. You need to earn at least $120 per week working as both a manager at a grocery store and teaching music
lessons. You earn $10 per hour at the store and $15 per hour teaching music. You are required to work at the
grocery store at least 8 hours a week, but do not want to work more than 20 hours total.
a. Write and graph a system of linear inequalities.
b. Identify and interpret a solution to the system.
c. Use your graph to determine whether you can work 8
hours at the grocery store and teach 1 hour of music. Explain the work that leads you to your answer.