Please help me find the formula for b). I have tried everythingalready and it is

Question

Please help me find the formula for b). I have tried everythingalready and it is driving me nuts trying to find a formula for thisproblem.

So far I have this f(x) = { 1 x > 1
{1 + x

f(x) = { 1 x > 1
{(10)(x) + x

I understand that the problem is asking for the formula but what Idon't get is how to write a formula for it. Every problem isdifferent so how as I suppose to write a general formula for it.Such as if the difference is .99 the maximum the customer would getback is 5 dollars + .99. So that wouldn't be the same for if thedifference was .10. Please help me with this.

Thanks.

Link:
http://www.freeimagehosting.net/image.php?57877d5bfc.jpg

Explanation / Answer

You will get an answer quicker if you write out the problem. Most of us, who answer questions, do not have the textbook to which you are referring.

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