It would be y+3. This is written as an algebraic expression.
just look it up on google
Hundredth Place
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The length is 12, because if it's 9 inches wide it has two sides of 9 inches which is 18. Then subtract that from the intial value 42 to get 24. After, you divide 24 by 2 due to there being 2 sides of the box and 24 is the sum of both sides. Hopethis helps!
My guess is 3/10......because 24/60 is simplified to 3/10
