math
posted by christine on .
Fouryear college tuition. The average tuition at a public fouryear college was $3983 in 2001 and $5948 in 2005. Find the rate at which tuition was increasing.

Tuition has gone up from $3983 to $5948 in four years.
To find the increase rate, take the difference and divide by the number of years for the increase.