# math

If a lab technician has a salary of 22000 her first year and is due to get a 500 raise each year, then what will her salary be in her seventh year?
What is the total salary for 7 years of work for the lab technician?

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1. just use for formulas for an AS

term(n) = a + (n-1)d
for yours
a=22000
d=500
n=7

sum(n) = (n/2)(first + last)
(you have the last term from above)

or

sum(n) = (n/2)(2a + (n-1)d )

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