Tamara has decided to start saving money for spending money for her first year of college. Her money is currently in a large suitcase under her bed, modeled by the function s(x)=450. She is able to babysit to earn extra money and that function would be a(x))=6x-2, where x is measured in hours. Explain to Tamar how she can create a function that combines the two, and describe any simplification that can be done