Answer :
Answer: [tex]37000+2500n[/tex]
Step-by-step explanation:
Given
John makes $82,000 per year after 18 years
If he would have to get a raise of $2500 per year
Suppose he starts with a salary of [tex]x[/tex]
after the first year, his salary would be
[tex]\Rightarrow x+2500[/tex]
After 2 years, the salary would be
[tex]\Rightarrow x+2500+2500=x+2\times 2500[/tex]
Similarly, after n years salary is
[tex]\Rightarrow x+2500n[/tex]
For 18 years, it is
[tex]\Rightarrow x+2500\times 18=82,000\\\Rightarrow c=82,000-45,000=\$\ 37,000[/tex]
So, after n years of working salary is [tex]37,000+2500n[/tex]