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- Hi, just to clarify, can you respond to me about the Math problem, a) and b). Just to clarify that there should be "two" answers for both "a)" and "b)". Thanks.

- Shawn earns $375 per week plus a commission of $7.5% on all sales. Calculate his weekly earning on sales of: a) $8000, and b) $12 500.

Yes, there should be 2 answers a) and b) since there are 2 cases to consider. His/her weekly earning is the sum of his weekly salary plus the commision he earns that week.

a) $375 + (7.5%/100)$8000 = $370 + (0.075)$8000 = $375 + $600 = $975.

b) $375 + (0.075)$12500 = $1312.50.


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randy patton


college mathematics, applied math, advanced calculus, complex analysis, linear and abstract algebra, probability theory, signal processing, undergraduate physics, physical oceanography


26 years as a professional scientist conducting academic quality research on mostly classified projects involving math/physics modeling and simulation, data analysis and signal processing, instrument development; often ocean related

J. Physical Oceanography, 1984 "A Numerical Model for Low-Frequency Equatorial Dynamics", with M. Cane

M.S. MIT Physical Oceanography, B.S. UC Berkeley Applied Math

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