3 years ago

Pls help (pic above)

Mathematics

2 answers:

wel3 years ago

4 0

Answer:

$(7 + 5) + 1 = 12 + 1 = 13 \\ 7 + (5 + 1) = 7 + 6 = 13 \\ here \: we \: use \: assosiative \: \: property \\ of \: addition\\ option (b) \\ \: thank \: you$

makvit [3.9K]3 years ago

3 0

Answer:

(7+5)+1 equals 12+1 which equals 13 7+(5+1) equals7+6 which equals to 13

Step-by-step explanation:

b: associative property of addition

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