The aquarium is 2 1/2 miles from her hotel. She walks 1/4 mile to the bus stop, takes the bus for 1 3/4 miles, and walks the rest of the way to the aquarium.

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

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

i believe a. 12x≥120 is the answer