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The length of sere's pencil is given by the equation y=15 - x where y is its length in cm and x is the number of days she uses it.

a)Find the length of her pencil on day 6.

b) on what day is her pencil 5cm long?​

User Qqwy
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Answer:

a) Find the length of her pencilonday 6

Explanation:

User Matthew Seaman
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