Mathematics
Mathematics, 30.07.2019 16:20, valeriegarcia12

If 60 metres of fencing was available to make a rectangular pen with length, l, and width, w, then the formula for the area, a, of the pen is given by:
1. a = (30-l) w
2. a = (30-w) w
3. a = (30-w) l
4. a = (60-2l) w
5. a = (60-2w) l

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