A plant is already 8.50 meters tall, and it will grow 6 centimeters every month. The plant's height, H (in meters), after x months is given by the following.
H = 0.06x + 8.50
What is the plant's height after 30 months?

12 ; 12 dollars

Step-by-step explanation:

Data provided in the question:

Revenue function, R = 12x

R is in dollars

Now,

The slope can be found out by differentiating the above revenue function w.r.t 'x'

thus,

=

or

slope = 12

Now, for the second case of selling one more unit i.e x = 1, the revenue can be obtained by substituting x = 1 in revenue function

therefore,

R = 12 × 1 = 12 dollars