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Thickness of the book is ~
Refer to the attachment for solution ~
The angle will be acute since 21 is less than 90 degrees
Answer: A
Step-by-step explanation:
Step-by-step explanation:
14 - 8 + 3 + 8 × [24 ÷ 8}
14 - 8 + 3 + 8 × [3}
14-8+3+24= 33
= 33