Math, asked by poojabhartiya, 4 months ago

maths solve all quiz properly.

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Answered by nainika26

2

Answer:

1. 80

2. 4 ( 7 + y ) = 16

Step-by-step explanation:

1. 80 because 9² - 1 = ( 9 ×9 ) - 1

= 81 - 1 = 80

2. 4 ( 7 + y ) = 16

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