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.

Assuming a 15-week semester:

6(15) + 40 = ?

solve the equation showing steps please

6(15)+40

Is it 90+40=130?

To define a variable for the number of weeks your dad spends in class, we can use the variable 'w'.

Now, let's break down the total time he spends on biology this semester. We know that he spends 40 hours in the biology lab for the whole semester and takes notes for 6 hours per week.

So, the expression for the total time he spends on biology this semester can be written as:
total time = 40 (hours in the lab) + 6 (hours per week) * w (number of weeks in class)

Now, you can simplify this expression further if needed.