Bert was able to sell 8 toy phones for $18 each, while Tory was able to sell 7 toy guns for $20 each. How much more did Bert earn than Tory?
Bert was able to earn 8 x $18 = $<<8*18=144>>144 for the toy phones.
While Tory was able to earn 7 x $20 = $<<7*20=140>>140 for the toy guns.
Therefore, Bert was able to earn $144 – $140 = $<<144-140=4>>4 more than Tory.
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