So all you need to do if find the min of the function:
f(x)=0.04x^3-4x^2-176x
f'(x)=0.12x^2-8x-176
The only zero for this is x=84.105 <---first
Plug this into f(x) to get f(84.105)=-19300 <---second
Answer:
2496.78
Step-by-step explanation:
A. assuming the sales tax is already added to the 72.60 all you have to do is add 20%
Answer:
$1
Step-by-step explanation:
