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# Functional Python

We have a bunch of prices and sales numbers and we need to find out our total earnings.

Let's start by writing a function named product_sales that takes a single two-member tuple made up of a price and a number of units sold. product_sales should return the product of the price and the number of units.

help im lost

prices.py
```prices = [
(6.99, 5),
(2.94, 15),
(156.99, 2),
(99.99, 4),
(1.82, 102)
]
def product_sales((price, unit)):
price, unit = passed_tuple
```

STAFF

Hi! Let me break this down.

• Let's start by writing a function named product_sales - check! This is correct
• that takes a single two-member tuple - you should have a single argument in your function, right now you have two inside of a set of extra parentheses
```def product_sales(passed_tuple):
```
• made up of a price and a number of units sold. - the tuple that is going to be passed in will be made up of these two values
• product_sales should return the product of the price and the number of units. - you should return the product (*) of the two values that are inside of the tuple
```def product_sales(passed_tuple):
price, units = passed_tuple
return price * units
```

I hope this helps!