In how many years it will take for the percent of spam to reach 85% provided that law enforcement?

Question

Suppose that the function P=11+14In x represents the percentage of inbound e-mail in the U.S. that is considered spam, where x is the number of years after 2002.

Answer 1

P=11+14In x

85 = 11+14ln x

74 = 14ln x

5.286 = ln x

x = 197

2002 + 197 = 2199