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英语翻译The demand equation for home-baked pies is given bu 2p=

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英语翻译
The demand equation for home-baked pies is given bu 2p= -q + 350 where p is the price of each pie(in cents) when q pies are demanded.
a.What is the effect on sales of pies if the price is increased by 10 cents?
b.What is the effect of a 5-cent price decrease?
c.Suppose the current price of 150 cents is increased to 175 cents.What will be the effect on the revenue?(Revenue is the product of demand and price)
家里烘烤的馅饼的价格需求公式是2p= -q + 350,p表示每块馅饼的价格(单位是cents),q表示需要的馅饼的块数.
a,如果价格上涨了10cents,那么对这个馅饼的销售有什么影响?
b,如果价格上涨了5cents,有什么影响?
c,假设现在价钱由150cents涨至175cents,对收入有什么影响?