Answer:
A
Step-by-step explanation:
Horizontal asymptote: y = 0
Exponential growth.
3.987 rounded to the nearest tenth = 4.0
So you do $90 times .40 because 40%=.40 then next you set up your problem
90x.40=36
In total the sales price is $36
(5rs-1t3)(-3r2st)
-30r^2s^2t+18rst^2
Definitely irrational, and I'd say 1.4