Question 7 of 10 Which chemical equation follows the law of conservation of mass?
A. 2LIOH + H2CO3
Li2CO3 + H20
B. LiOH + H2CO3 - Li2CO3 + 2H20
C. 2LIOH + H2CO3 - LiCO3 + 2H20
D. 2LIOH + H2CO3
LI2CO3 + 2H20

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