- If the equation is
:

- If the equation is
:

Hopefully the math was self-explanatory. If it is not, please feel free to ask for a step-by-step, in depth explanation, and I will edit my answer to accommodate.
Answer:
according to writer it answer is 2 minute
C(X)
Only one that's goes up 2 and has a slope of 2/3
40% of 44000 would be 17600