The limit is equivalent to the value of the derivative of

at

. (See definition of derivative)
Abc is your answer
Step-by-step explanation:
you said ABC
Plus a negative value becomes subtraction:
-12 + -23 = -12 -23 = -35
Answer:
a. 
b. 
c. 
d. -6t - 5
Step-by-step explanation:
When a number has the same variable as another, you can add or subtract them
So for the first one, you can do

(But don't forget the
!)
So it is:

Continue this process for the rest of them
I think The answer is 22.5