Answer:
There are probably more than this but here
$12 for pens would give you 6
$12 for notepads would give you 4
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$18 for notepads would give you 6
$6 for pens would give you 3
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$21 for for notepads would give you 7
$2 or pens would give you 1
and $1 left
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$6 for notepads would give you 2
$18 for pens would give you 9
Hi! Did you get the answer for this by any chance??
2 because if you divided 8/12 by 2/6=2
After reducing the fraction it becomes equal to 5/12. Let the common element which was cancelled out be x. So we can say the original fraction was

.
The denominator of the fraction is 147 greater than the numerator. We can write it as:
12x = 147 + 5x
12x - 5x = 147
7x = 147
x = 21
So, the numerator of the fraction was 5 x 21 = 105
Denominator of the fraction was 12 x 21 = 252
So our original fraction was
A = L * W
A = 357
W = 17
357 = 17L
357 / 17 = L
21 = L <== length is 21 inches