Y=1.50x+7.50. 7.50 is the y intercept and 1.50 is the rate of change or slope
        
             
        
        
        
Answer:
24????
Step-by-step explanation:
i added 21+3 and it got me 24 im not sure i am just trying :l :( :)
 
        
             
        
        
        
Answer:
the missing side length is 
Step-by-step explanation:
we know that the volume of the rectangular prism is equal to

In this problem we have


using a graphing tool find the x-intercepts of the function
see the attached figure
The x-intercepts are

so


therefore
the missing side length is 