4 I think i'm sorry if I get it wrong.  Hope I helped ≥ω≤
        
             
        
        
        
Answer:
Step-by-step explanation:
4.
a)
P = 2width + 2length 
8x = 2x + 2 length; 8x-2x = 2 length; 6x=2 length 
length = 3x
b) 
sides= 1/4 of 3x = 3x/4 
perimeter of square = 4* side = 4*3x/4 = 3x
c) 
x= 4
P rectangle =8x= 8*4= 32
P square = 3x = 3*4 = 12
32-12 = 20 cm greater is the P rectangle than P of square
d) 
A rectangle = 2x*x = 2*4*4 = 32
A square =(3x/4)² = (3*4/4)² = 9
32-9 = 23 cm² greater is the A rectangle than A of square
5. 
4Comic+1 Nonfiction
4comic = 8y so 1 comic = 2y
1 nonfiction = (3+7y)+ 2y
a)
1 nonfiction = 7y+2y+3 = 9y+3
b)
total= 8y+9y+3 = 17y+3 
if y=4
total = 17*4 +3  = $71
 
        
                    
             
        
        
        
Answer:
.05 im sure of it hope it helps.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
22.6
Step-by-step explanation:
15-1   8-15
14^2     7^2
196+49
245
15.6
 
        
             
        
        
        
Answer:
8=41
7=49
10=41
9=49
Step-by-step explanation:
angle 8 is given and since 7 and 8 make 90 then 7 =49 because 90-41=49. 10 and 8 are the same size (at least it looks like it) therefore 7 and 9 are the same too. So that is how I got the answers.