Answer:
<h2>x = 28</h2>
Step-by-step explanation:
ΔARP and ΔCRD are similar. Therefore the sides are in proportion:

We have:
AR = 10 + x
CR = x
PR = 15 + 42 = 57
DR = 42
Substitute:
 <em>cross multiply</em>
           <em>cross multiply</em>
 <em>use distributive property</em>
             <em>use distributive property</em>

 <em>subtract 42x from both sides</em>
         <em>subtract 42x from both sides</em>
 <em>divide both sides by 15</em>
            <em>divide both sides by 15</em>

 
        
             
        
        
        
Answer:
20cm
Step-by-step explanation:
Frame L&W: 25×20
PictureL&W:20×16
25-20=5
Length of Picture frame=5
Length of Picture frame=4
5×4=20cm²
To find area you multiply length by width
 
        
             
        
        
        
The answer is A : y=-1/5x+1 ..... I checked on desmos