Leslie's book store has 48% off sale on all of its merchandise. how much is the discount on a book that originally cost 36.45 dollars. show all work.

So look at the step.
 but this is the different way.
48*36.45=1749.6
look ate the question what is the question asking you
they asking you ( discount ) on a book
discount is like (-)
so you need to do that 1749.6-36.45=1713.15
so the answer is 1713.15
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If the diameter is 8 than the radius is 4 because 2r or 2*radius equals the diameter. 4*2=8. 8/2=4.