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Functions
What Good are Functions?

You might have considered the situation where you would like to reuse a piece of code, just with a few different values. Instead of rewriting the whole code, it's much cleaner to define a function, which can then be used repeatedly.

Instructions

Check out the code in the editor. If you completed the [Tip Calculator][1] project, you'll remember going through and calculating tax and tip in one chunk of program. Here you can see we've defined two functions: tax to calculate the tax on a bill, and tip to compute the tip.

See how much of the code you understand at first glance (we'll explain it all soon). When you're ready, click Save & Submit to continue.

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Remember how we used %s to print strings? We can use %f to print floats! (That is, numbers with decimals in them.)

script.py