Answer:
65%
Step-by-step explanation:
In general to find %, divide the subset by the total amount and multiply by 100:
2145 / 3300 * 100 = 65%
40
AREA=LW
L₁W₁=40
L₂W₂=160
x(L₁W₁)=L₂W₂
x(40)=160
x=40
Answer: 7