Select all of the ratios that are equivalent to 1:5 2/9
2/10
6:30
5 to 20
3/20
8 to 40

2/10 and 6/30 and 8/40

Step-by-step explanation:

2/10 reduces to 1/5

6/30 reduces to 1/5

8/40 reduces to 1/5

step-by-step explanation:

for the free

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