Chapter 5.1, Problem 9E

Please show your solution in step by step process.

The amount ( in billions of dollars) held in private pension funds can be approximated by the function h(x)=-11052+5742lnx where x=10 corresponds to the year 1990.  a) What was the amount in private pension funds in 2001 and 2009? b) If the model remains accurate, when will the amount reach $9000 billion?  a) 179.7g  b)21.66 yrs I need explanations those are the answer