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8.1

Step-by-step explanation:

according it bidmas or pemdas depending on your syllabus division comes first so 9/10 is 0.9 then doing 9 x 0.9 is 8.1

relate7
9 x 9/10
First things first you turn 9 into a fraction which would be 9/1
9/1 x 9/10
The numerators get multiplied together and the denominators get multiplied together
9 x 9 = 81
1 x 10 = 10

81/10
81 and 10 do not have any common factors so the number remains 81/10

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