Marissa has a Master's degree and earns an annual salary of $80,400. She works 40 hours per week for 48 weeks per year. Her sister has a Bachelor's degree and earns an average salary of $58,000. She works 40 hours a week for 52 weeks. How much greater is Marissa's hourly wage than her sister's hourly wage? Round your answer to the nearest whole dollar.

$14

Step-by-step explanation:

Marissa has a Master's degree and earns annual salary of $80,400.

She works 40 hours per week for 48 weeks per year.

Her sister has a Bachelor's degree and earns an average of $58,000 per year.

She works 40 hours per week for 52 weeks per years.

Marissa works for a total of 40 × 48 = 1920 hours a year.

Her hourly wage = = $42 (rounded up to nearest dollar).

Her sister works for a total of 40 × 52 = 2080 hours

Her hourly wage = = $28 (rounded up to nearest dollar)

So Marissa's hourly wage is $42 - $28 = $14 more than her sister's hourly wage.

answer: the common difference is -0.10