Answer:
10
Step-by-step explanation:
because there are 20 girls and 10 boys = 30
276
60 feet plus 3 is 63, 63 times 2 is 126, 126 +150 is 276
Good luck!
Intelligent Muslim,
From Uzbekistan.
the length is given and i got the width as 8 so you just add up all the sides and i got 40