40. Jill has deducted from his paycheck each week
    for health insurance. This amounts to of his gross
    income. What is her gross income?

To find Jill’s gross income, we can set up the equation where of her gross income equals . So, we can write:

To isolate the gross income, divide both sides by :

Therefore, Jill’s gross income is per week.

When handling percentages, it’s helpful to remember that they represent fractions of a whole. In Jill’s case, since her health insurance deduction was , it can also be interpreted as needing parts out of every for each paycheck. Make conversions easier by multiplying decimals for faster calculations!