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There are 16 ounces in a pound.
She bought 27 ounces of roast beef and 37 ounces of corned beef. The difference between them is 10 ounces. 

RB=1 pound=16 oz
RB= 16+11 oz
CB=2 pound= 16+16
CB= 32+5 oz
RB=27
CB=37
37-27=10
10 more ounces of Corned Beef

We need the pictures of the graphs

hope it is correct if not i'm srry i tried to