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
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
 
        
             
        
        
        
Answer:
C. Marie should make sure she surveys both the fathers and mothers.
 
        
             
        
        
        
Answer:
7) 13 in. Because the hypotenuse is the longest length than opposite and adjacent. 
8) 12 in. Because it has 90° angle. 
9) 12 in
10) 5 in