PROBLEM0.5.md

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Tip Calculator

In the United States, it’s customary to leave a tip for your server after dining in a restaurant, typically an amount equal to 15% or more of your meal’s cost. Not to worry, though, we’ve written a tip calculator for you, below!

	def main():
		dollars = dollars_to_float(input("How much was the meal? "))
		percent = percent_to_float(input("What percentage would you like to tip? "))
		tip = dollars * percent
		print(f"Leave ${tip:.2f}")


	def dollars_to_float(d):
		# TODO


	def percent_to_float(p):
		# TODO


	main()

Well, we’ve written most of a tip calculator for you. Unfortunately, we didn’t have time to implement two functions:

• dollars_to_float, which should accept a str as input (formatted as $##.##, wherein each # is a decimal digit), remove the leading $, and return the amount as a float. For instance, given $50.00 as input, it should return 50.0.
• percent_to_float, which should accept a str as input (formatted as ##%, wherein each # is a decimal digit), remove the trailing %, and return the percentage as a float. For instance, given 15% as input, it should return 0.15.

Assume that the user will input values in the expected formats.

Hints

• Recall that input returns a str, per https://docs.python.org/3/library/functions.html#input.
• Recall that float can convert a str to a float, per https://docs.python.org/3/library/functions.html#float.
• Recall that a str comes with quite a few methods, per https://docs.python.org/3/library/stdtypes.html#string-methods. Demo

Before You Begin

From the root of your repository execute cd 0-FunctionsVariables So your current working directory is ...

	/0-FunctionsVariables $:

Next execute

	mkdir tip

to make a folder called tip in your codespace.

Then execute

	cd tip

to change directories into that folder. You should now see your terminal prompt as /0-FunctionsVariables/tip $. You can now execute

	code tip.py

to make a file called tip.py where you’ll write your program.

How to Test

Here’s how to test your code manually. At the tip/ $ prompt in your terminal: :

1. Run your program with python tip.py. Type $50.00 and press Enter. Then, type 15% and press Enter. Your program should output:

    Leave $7.50

2. Run your program with python tip.py. Type $100.00 and press Enter. Then, type 18% and press Enter. Your program should output:

    Leave $18.00

3. Run your program with python tip.py. Type $15.00 and press Enter. Then, type 25% and press Enter. Your program should output:

    Leave $3.75

Commit your program to GITHUB

At the /0-FunctionsVariables/tip $ prompt in your terminal:

	git add -A 

Add all changed files in the repository to be committed

	git commit -m “Upload completed tip.py“

Commit all changes in the REPO with the comment “Upload completed tip.py“ note: If the file is not complete, adjust the comment to describes what is being commited

	git push 

Push all changes to the REPO