Hey everyone I need help with this one.

The spot price of crude oil during the period 2000-2005 can be approximated by

P(t) = 5t + 25 dollars per barrel (0 ≤ t ≤ 5)
in year t, where t = 0 represents 2000.

Q(t) = 0.082t2 − 0.22t + 8.2 million barrels per day† (0 ≤ t ≤ 5)

Use these models to estimate Saudi Arabia's daily oil revenue and also its rate of change in 2002. (Round your answers to the nearest $1 million.)

daily oil revenue ____ million
rate of change in 2002 _____ million/yr

Question

Hey everyone I need help with this one. 

The spot price of crude oil during the period 2000-2005 can be approximated by

P(t) = 5t + 25 dollars per barrel    (0 ≤ t ≤ 5)
in year t, where t = 0 represents 2000. 

Q(t) = 0.082t2 − 0.22t + 8.2 million barrels per day†    (0 ≤ t ≤ 5)

Use these models to estimate Saudi Arabia's daily oil revenue and also its rate of change in 2002. (Round your answers to the nearest $1 million.)

daily oil revenue ____ million
rate of change in 2002 _____ million/yr

anonymous · Answer

Just break it down...
Price: P(t) = ..
Production: Q(t) = ..
The Revenue is Price * Production = ..
The rate of change of Revenue is the derivative of Revenue.

anonymous · Answer

how do i find the derivatve of the revemue