Marquis begins a career making $53,000 per year. each year, he is to receive a $1,600 raise. after 25 years, how much total money will marquis have earned from this career?

$1,792,000
$1,805,000
$1,844,975
$1,845,000

First, you find what he will be making in the 25th year:



               = 53000+(24)1600
               =53000+38400=91400

So in year 25 he was making $91400
To find the sum of all of that the formula is 
In this case we are trying to find  and n=25,  and  so we just plug it in


Hope that helps

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