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The smallest whole number greater than $45$ is:

Class 8Estimating Square RootsSquares and Roots

A6
B7
C8
D5

Step-by-Step Solution

6^{2} = 36

and

7^{2} = 49

. Since 36 < 45 < 49,

45

is between 6 and 7, so the smallest whole number greater than it is 7.

Answer: B) 7

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