Renata is reading an 800-page thriller. She reads 60 pages each day. The formula f(n) = 740 − 60(n − 1) represents how many pages Renata has left to read after n days of reading. How many pages does she have left to read after 9 days of reading?

5+2x=a

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your answer is -9

step-by-step explanation:

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33