Rate of increase problem

[mustang]

A gallon of milk was $1.79 two years ago. Today, it's $2.15. Find the rate it increased each year.

[cookiemonster]

Is the rate of increase constant?

cookiemonster

[Integral]

As for any rate of change problem

r = \frac {\Delta P} {\Delta t}

r is the rate of change, P is price, t is time.

[ShawnD]

I've posted my answer here (http://physicsforums.com/showthread.php?goto=newpost&t=23872)

Can you stop double posting. Come on, you know better.