it would be 13
Step-by-step explanation:
$4 for one slice. divide amount paid by amount received to get the cost per item.
We don't have to stress too much over the details, which are a little muddled here. When we scale the linear dimension by a factor of <em>f </em>we scale areas by a factor of .
It's not totally clear from the question but let's say A is on the inner circle of radius <em>r</em> and B on the outer circle of radius <em>R.</em> The linear dimensions are scaled by the ratio so the area is scaled by
Answer: