momof7hardings
28.10.2019 •
Mathematics
A. wall paper border costs $12.89 for a 15 feet roll. how many rolls do you need to purchase?
b. what would the total cost be?
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Ответ:
A:3 B: 38.67
Step-by-step explanation: See the other question I posted on as it is the same numbers and has in depth steps.
Ответ:
14 = 7 x 2
21 = 7 x 3
The answer is 7