To recover the investment James will take 
Further Explanation:
Given:
The current salary of James is 
The time taken to complete the college degree is 
The cost of the college degree is 
The James’ new salary after college degree will be 
Calculation:
The total investment of James can be calculated as follows,

The total investment for 2 years will be 
The James’ new salary after college degree will be 
The time taken by James to recover 

To recover the investment James will take 
Learn more:
- Learn more about inverse of the function brainly.com/question/1632445
- Learn more about range and domain of the function brainly.com/question/3412497
- Learn more about profit and loss brainly.com/question/2479097
Answer details:
Grade: High School
Subject: Mathematics
Chapter: Investment and return
Keywords: James, job, current salary, salary, $42000, earn, college, college degree, 2 years, complete, graduation, cost, $28000, per year, investment, recover, new salary, work, able, school, full time.