Answer:
768 m²
Step-by-step explanation:
8 x 400 = 3200 cm = 32 m
6 x 400 = 2400 cm = 24m
32 x 24 = 768 m²
78 quarters
I think because, I created an equation, 5x = 390 and solves to get 78
the answer is 7.83 it's not rounded though
I believe it will be 2g times 8