D.
You will multiply 3 for each visit (3dollars per visit) then just add the initial fee
R = rate of growth of raindrop vine = 0.75 feet/day
we know that : 1 feet = 12 inches
1 day = 24 hours
replacing the units accordingly in the above expression for rate of growth of raindrop vine
R = 0.75 (feet/day) (12 inches/1 feet) (1 day/24 hours)
R = (0.75 x 12 /24) (inches/hour)
R = 0.375 inches/hour
0<4x + 8<12 BADDA-BING-BADDA-BOOM!!! :-)
The answer is 18.2
I got the answer by solving it
Answer is D.
Just plug in 2 for x and -2 for y. And solve
