No, r=3 can’t be a solution to this inequality. If we plug it in we get: 3+4>7 or 7>7 which is false. r should be more than 3.
        
             
        
        
        
Answer:
=x+2
Here is the answer
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
468.75 square inches
Step-by-step explanation:
Let the length of Julian's tank be x
Let the width of Julian's tank be y
So, Area of Julian's tank=
Since we are given that Julian's tank is approximately 300 square inches
So,  --1
  --1
Now we are given that  The dimensions of his friend's tank are each exactly times the dimensions of Julian's tank.
times the dimensions of Julian's tank.
So,length of his friend's tank =
So,width of his friend's tank =
So, Area of his friend's tank=
                                              =
                                              = (Using 1)
 (Using 1)
                                              = 
 
Hence the approximate area of the rectangular base of his friend's tank is 468.75 square inches.
So, Option D is correct.