9times (30+7=(9 times _)+(9 times 7)

9(30+7) = (9*30)+(9*7)

This is the distributive property

x(y+z) = xy + xz

Let the dash = x

9(30+7) = (9*x)+(9*7)

9(37) = 9x + 63

333 = 9x + 63

Substract 63 from both sides

333 - 63 = 9x +63-63

270 = 9x

Divide both sides by 9

270/9 = 9x/9

30 = x

Or x = 30

9(30+7) = (9*30)+(9*7)

Step-by-step explanation:

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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