please help with this problem

Your dad is taking Biology as part of the veterinarian program at the local community college. This semester he will spend a total of 40 hours in
the biology lab, and he will take notes in class 6 hours per week.
Define a variable for the number of weeks your dad spends in class. Use this variable to write an expression for the total time he spends on biology this semester. What would the y interval be for this problem?

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