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1.

How do you return from a function?

The last row of the function is the return value.

You use the return keyword.

You declare a variable called return and place it last.

2.

How would you declare the add() function that takes two strings and returns an int?

Write it like let add a b = a + b.

Write it like let add (a:string) (b:string):int = (int a) + (int b).

Write it like let add (a:string) (b:string):bool = (int a) + (int b).

3.

The following code let addAndMultiply = add >> multiply is doing what?

Creating a pipeline.

Defining a function.

Creating a composition.

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