the function f9b) = 12b + 750 represents the cost in dollars for printing b books with a publish on demand service. what is f 100

1950 ??

Correct, I think you are quite good at it!

To find the value of f(100), we need to substitute the value of b as 100 in the function f(b) = 12b + 750 and solve the equation.

So, let's do that:

f(b) = 12b + 750

f(100) = 12(100) + 750

Now, we can simplify the equation:

f(100) = 1200 + 750

f(100) = 1950

Therefore, the cost of printing 100 books using the publish-on-demand service is $1950.