# Calculate Annual Income

Write a function calculate_annual_income with two parameters: hourly_rate and hours_per_week. You could design hours_per_week to be a required parameter, but for this assignment, since many people work 40 hours per week, you're going to design it as a default/optional argument set to 40.

There are 52 weeks in a year, so all we need to do is multiply the hourly_rate by hours_per_week and multiply that by 52.

calculate_annual_income(15.00)  # 31200.00
calculate_annual_income(12.00, hours_per_week=20) # 12480.00

### Test Cases

test annual income base -

def test_annual_income_base():
assert calculate_annual_income(15.00)  == 31200.00

test annual income default hours -

def test_annual_income_default_hours():
assert calculate_annual_income(12.00, hours_per_week=20)  == 12480.00

Solution 1

def calculate_annual_income(hourly_rate, hours_per_week=40):
return hourly_rate * hours_per_week * 52