Answer:
Step-by-step explanation
there are 80 boxes in total
See below.
Step-by-step explanation:
x+3/9=5/9
-3/9 -3/9
x=2/9
--------------
11+x=50
-11 -11
x=39
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2/9+x=8/9
-2/9 -2/9
x=6/9 or 2/3
-hope it helps
Answer:35%