# The amount of foreign earnings​ (in trillions of​ dollars) kept overseas can be approximated by the function f(x)=0.232(1.29)^x​ where x=5 corresponds to the year 2005. Find the first full year in which the foreign earnings kept overseas exceeds the following amounts.   ​(a)   ​$1.51.5 trillion ​(b) ​$2.62.6 trillion

Question
The amount of foreign earnings​ (in trillions of​ dollars) kept overseas can be approximated by the function
f(x)=0.232(1.29)^x​
where
x=5
corresponds to the year 2005. Find the first full year in which the foreign earnings kept overseas exceeds the following amounts.

​(a)
​$1.51.5 trillion ​(b) ​$2.62.6
trillion