Precalculus - check answer

The rate of U.S. per capita sales of bottled water for the period 2000-2010 could be approximated by s(t) = −0.18t2 + 3t + 15 gallons per year (0 ≤ t ≤ 10),
where t is time in years since the start of 2000. Use a Riemann sum with n = 5 to estimate the total U.S. per capita sales of bottled water from the start of 2001 to the start of 2006.

I posted this earlier but would appreciate someone checking my answer. Calculating the Left Riemann sum, I get 110.1 - is this correct?

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  1. Yes, good work!

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