445 + 210 + 525 = 1,180
500 + 85x = 1,180
-500 -500
85x = 680
/85 /85
x = 8
Answer:
12.6 square feet
Step-by-step explanation:
So first we set it up:
18ft is 100% of the original
and the area of the copies are 70%
Copies: x
x/70 = 18/100
70(18) = 1260
1260/100 = 12.6
x = 12.6
Step-by-step explanation:

Answer:
D
Step-by-step explanation: