OpenStax, Algebra and Trigonometry 2e §13.5 Counting Principles · Exercise 52 · Combinatorics · Permutations & combinations
Counting Principles · Exercise 52
An art store has 4 brands of paint pens in 12 different colors and 3 types of ink. How many paint pens are there to choose from?
OpenStax, Algebra and Trigonometry 2e · §13.5 Counting Principles · Exercise 52
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