# Pre-calc

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An investment firm has a job opening with a salary o \$30,000 for the first year. Suppose that during the next 39 years, there is a 5% raise each year. Find the total compensation over the 40-year period.

• Pre-calc -

30000 (1 + 1.05 + 1.05^2 + ... + 1.05^39)

30000 (1.05^40 - 1)/(1.05 - 1) = 3,623,993.23

• Pre-calc -

Could you possibly elabarate a little on to how you got those numbers please :)
thanks you!

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