Answer:

Step-by-step explanation:
Given

Required
The difference quotient for h
The difference quotient is calculated as:

Calculate f(x + h)



The numerator of
is:


Collect like terms


So, we have:

Rewrite as:


Answer:
Step-by-step explanation:
The number is 60:
Divide the amount and decimal of the percentage to be extracted
Case 1

Case 2

Now the 55% of this number is:

Hope this helps
He made $64.80 commission I think. 9% of $720 is $64.80
Answer:
4x + 1
Step-by-step explanation:
y = 2x² + x + 2
dy/dx = 2(2x¹) + 1 + 0
dy/dx = 4x + 1