<span>B.He thinks Byron will listen to Grandma Sands
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<span>D.the most years of education
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There should be a comma between the words 'Wisconsin' and 'whose'
because since there is a peiod, the senences read
georgia o'kefe was an american painter from wisconson, meaning: georga o'keef, american, from wisconson
second one
whose detailed close-ups of flowers brought her world renown
this is a clause, the two sentances should be joined with a comma because theh though continues
the sentances should read:
"Georgia O'Keefe was an American painter from Wisconsin, whose detailed close-ups of flowers brought her world renown."
Fifty cents is a plural noun since it is talking about more than one cent. In the example, you would say, "fifty cents <em>is </em>how much I owe you".