220ft squared
To find the area, you find the area of the 3 main figures, the triangle on the right, the square on the top left, and the rectangle left on the bottom and add all the areas up. If you do not know how to do this, please comment and I will guide you. :)
 
        
             
        
        
        
Answer:
105
Step-by-step explanation:
5 ÷ 35 = 7
140 ÷ 20 = 7
15 · 7 = 105
I hope this helps!
 
        
                    
             
        
        
        
Answer:
y = x(4+z)+6
y-6 = x(4+z)
x=(y-6)/(4+z)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
t = In2/ r
Step-by-step explanation:
Given the formula : A = Pe^rt
For investment to double ;
Final amount (A) = 2 * initial investment (p) 
A = 2p
Hence, 
2p = pe^rt
2 = e^rt
Take the In of both sides 
In2 = rt
Divide both sides by r
In2 /r = rt /r
In2/ r = t
t = In2/ r ; Hence, the proof