The puppy after a month would weigh 16 11/24
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Answer:
Add 2y and y.
Step-by-step explanation:
you have to combine what is common
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3y+21+8y
11y+21 is the answer
9514 1404 393
Answer:
a = 9 meters
Step-by-step explanation:
The perimeter is the sum of the side lengths:
28 m = a + 2m + a + 8m
18 m = 2a . . . . . . . . . . . . . . . . subtract 10m, collect terms
9 m = a . . . . . . . . . . . . . . . divide by 2
The value of a is 9 meters.