the first box put 21 the second one put 7 then the last one put 7
2.857 m away from the wall. because if it is 1.3 m off the ground when fired then you just subtract that from 2.9 to get 1.6 then divide that by sin (38.2) to get 2.857 m from the wall.
Sleeping bag⇒S
backpack⇒B
S=8 pounds
S+B=31
8+B=31
B=31-8
<u>B=23 pounds</u>
<em>Answer: 23 pounds</em>
