2n-5=7
Twice a number, n, is shown by multiply two and n. Then, you subtract this amount by five. 
        
                    
             
        
        
        
The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.
The maximum profit the company can make is $640,000.
 
        
                    
             
        
        
        
The sequence is to multiply by -3.  Therefore, you want to multiply by -3 which gives you 108.  Since it is a negative by a positive the answer would be negative.  The next term would be -108.
        
             
        
        
        
<h3>
Answer: Bottom right corner (ie southeast corner)</h3>
This 3D solid is a strange sideways bowl shape. Each cross section is a ring to show the empty space. 
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Explanation:
Check out the diagram below. The graph was created with GeoGebra. We have y = x^2 in red and x = y^2 in blue.
The gray region is the region between the two curves. We spin this gray region around the horizontal green line y = 1 to generate the answer mentioned above. 
Note how (1,1) is a fixed point that does not move as this is on the line y = 1. Every other point moves to sweep through 3D space to create the solid figure. One way you can think of it is to think of propeller blades. Or you can think of a revolving door (the door is "flat" so to speak, but it sweeps out a 3D solid cylinder).
 
        
             
        
        
        
Answer:
-392
Step-by-step explanation:
-56 x 7=-392
-392 / -56=7