Calc
posted by Marshall .
A student is in a 20 week calc class. The function f(t)=5050e^0.2t f(t) measures the students problem speed in t weeks
how many problems per hour can a student solve at the beginning of the course
 how many problems per hour can a student solve halfway through the course
at what rate is the students problem speed increasing 6 weeks into the course

Did you not look at and read my reply?
http://www.jiskha.com/display.cgi?id=1342766530
Once you have the correct equation, take the derivative to find the rate