Their error is that they divided 12 by 30, instead of 30 by 12 in order to get the price per pair
the correct unit price is $2.50 per pair
2.5 * 12 = 30
Answer:
0
Step-by-step explanation:
2 + 2 = 4 and then 4 - 4 = 0
5 of Anne’s pens still have ink. Since 23 of the 28 pens ran out, 5 pens are still good to write with.
Hope this helped!
1.99/32=0.06 an oz
3.69/64=0.05 an oz
5.85/96=0.06 an oz
therefore it is 64 oz