Answer:
>
Step-by-step explanation:
D1 = 60 for a price of $80. Charging $80 will ensure supply exceeds demand.
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The store apparently could charge a price slightly lower than $80, but we cannot tell from the chart how much lower.
15-20 is -5. If you put 15 on a number line and go back twenty spaces you land on -5 hope this helps.
Answer: -6
Step-by-step explanation:
