Answer:
56 yd²
Step-by-step explanation:
(3 ft)² = 1 yd² = 9 ft²
Multiplying by 56, we find ...
56 yd² = 504 ft²
3a-3(a+2)=10
3a-3a-6=10
+3 +3
6a-6=10
+6 +6
6a=16
