Answer:
Each step is 30 inches
Step-by-step explanation: One yard is 36 inches. 10 yards is 360 inches.
360 divided by 12 is 30.
36 * 7 gives you the number of nails in the whole pounds
36 * 2/3 gives you the fraction part
7 * 36 = 252
2/3 * 36 = 24
Total nails = 252 + 24 = 276 nails
15 Boys because 35-5 is 30 then divide 30 by 2 to get 15