Which pair of expressions is equivalent using the associative property of multiplication?

5 (3a ⋅ 4) = 15a ⋅ 20

5 (3a ⋅ 4) = (3a ⋅ 4) ⋅ 5

5 (3a ⋅ 4) = (5 ⋅ 3a) ⋅ 4

5 (3a ⋅ 4) = 5 ⋅ 3a ⋅ 4

The branch of mathematics that analyzes situations in which players must make decisions and then receive payouts most often used by economists is

Estimate. Find the sum 524+256

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4 feet 4 feet 3 feet 13 feet How is the base of the cylinder related to the base of the cone?

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