Cross multiply to get 8k+24=56 then solve for k so subtract 24 from each side to get 8k=32 so k=4
Answer:
I'm sorry I don't have a functioning brain anymore-
<em>but I think it's 21.</em>
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The first on is this answer here
Used show you have more than what is needed. Example is you need 6 slices of pizza for all your friends but have 7 slices you have more than is needed.