If y is the number of yellow cars , which variable expression represents the phrase below ?
the sum of the number of yellow cars and 9 red cars
a- y
-
9
b- y-8
c- y•9
d- y+9

step-by-step explanation:

it would be y+9

8 2/3 is the answer

step-by-step explanation: just use a calculator

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