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Problem 14 Easy Difficulty

A street vendor sells $ a $ hamburgers, $ b $ hot dogs, and $ c $ soft drinks on a given day. He charges $ \$4 $ for a hamburger, $ \$2.50 $ for a hot dog, and $ \$1 $ for a soft drink. If $ A = \langle a, b, c \rangle $ and $ P = \langle 4, 2.5, 1 \rangle $, what is the meaning of the dot product $ A \cdot P $?

Answer

The total income the vendor earned that day "revenue".

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