Comp Sci Database Systems help.

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Q2. Database Systems Consider the relational database schema described below, where the primary keys are underlined and foreign keys are in bold: employee (person-name, street, city) works (person-name, company-name, salary) company (company-name, city) manages (person-name, manager-name) 1 Write a query to find those companies whose employees earn a higher salary, on average, than the average salary at 'UC Denver