Answer:
B. C. and D.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
D
Step-by-step explanation:
100 - 35 = 55 dollars remaining
55/20 = 3.25 hours until no money
 
        
                    
             
        
        
        
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Answer:
Step-by-step explanation:
3/4 x 28=21   Madilyn built 21 toys.
1/7 x 28=4     Penelope built 4 toys.
21+4=25        25 toys have been built altogether.
28-25=3
There are 3 toys left to build.
 
        
             
        
        
        
Let S=larger square side and s=smaller square side.  The area between the larger and smaller is simple the larger area minus the smaller area.  The area of any square being s^2.  So our remaining area is:
A=S^2-s^2
A=144-49=95 cm^2