Question

The salary of members of two governing bodies in2008 was $163.4 thousand,and has increased by approximately $3 thousand per year since then

Answer 1

I assume you're asking for the total the two governing bodies make now in 2018.

[$]163,400 + [$]3,000x = t

x is represented by years, which would be 10 if it is 2018, and t is the total (answer).

163,400 + 30,000 = $193,400

The two governing bodies' salary would be, in 2018, $193,400.