Elliot got some new trading cards. He has 4 packs with 20 cards each. Another pack has only 8 cards which equation show a way to find how much cards Elliot has in all?

A. c = (4*8) + 20

B. c=4+20+8

C. c = (4*20) + 8

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What is 1/8 x 3/8 and how do you do the problem?