Mathematics, 15.07.2020 02:01 brooklynmikestovgphx

Hassan predicted that he would sell 178 postcards. He actually sold 142 postcards. What are the values of a and b in the table below?
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Hassan predicted that he would sell 178 postcards. He actually sold 142 postcards. What are the val

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Hassan predicted that he would sell 178 postcards. He actually sold 142 postcards. What are the valu...