Answer:
AFCE = 30
P+Q = 11
Step-by-step explanation:
From the picture, you can see the figure can be decomposed into two identical large triangles with area 20, and 4 identical longer ones, that have to cover the remaining area 40, thus 10 each.
From that you can count the area.
Second puzzle is just trial and error.
 
        
             
        
        
        
Answer:
Jamie has a  foot plank that he needs to cut into 1/9 pieces.
15 ÷ 1/9 = 135  
135 x 1/9 = 15
Step-by-step explanation:
 
        
             
        
        
        
an = a1r^(n-1)
a5 = a1 r^(5-1)
-6 =a1 r^4
a2 = a1 r^(2-1)
-48 = a1 r
divide
-6 =a1 r^4
----------------    yields   1/8 = r^3      take the cube root  or each side
-48 = a1 r                     1/2 = r
an = a1r^(n-1)
an = a1 (1/2)^ (n-1)
-48 = a1 (1/2) ^1
divide by 1/2
-96 = a1
an = -96 (1/2)^ (n-1)
the sum
Sn = a1[(r^n - 1/(r - 1)]
S18 = -96 [( (1/2) ^17 -1/ (1/2 -1)]
        =-96 [ (1/2) ^ 17 -1 /-1/2]
       = 192 * [-131071/131072]
  approximately -192
       
        
      
 
        
             
        
        
        
8 is the answer 
Ignore this part, Brainly wants more than 20 characters