A teacher 3
A teacher gives pens and pencils to elementary students at an equal rate in each classroom.
Determine the missing value for the letter B.
| Pencils | Pens |
|---|---|
| 18 | 72 |
| 29 | A |
| 35 | 140 |
| B | 168 |
Determine the missing value for the letter B.
Correct answer:
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