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Which mathematical property is demonstrated?

7 + 9 + 3 = 7 + 3 + 9

commutative property of addition

commutative property of multiplication

associative property of multiplication

associative property of addition

Look at this photograph taken during the battle of guadalcanal

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.