Well first you would set up your ratio, 17/x = 35/100. You are trying to find x. To do so you cross multiply and divide. So first you have 17× 100 which equals 1700. The you divide that number by 35 which is around 48 like you said. I usually just round to the hundredths place so just cut it at 48.57 but to be safe say approximately 48.57
        
             
        
        
        
Answer:
347.82
Step-by-step explanation:
 
        
             
        
        
        
Answer:
 2,250
Step-by-step explanation:
For area you have to multiply the base and width. So 90 times 25 and then you get the answer of 2,250.
 
        
                    
             
        
        
        

the equation is a quadratic one, and it has a positive coefficient on the leading term, meaning, is opening upwards, so it has a "burrow" for the vertex.
the minimum or lowest point for a quadratic opening upwards is, well, the vertex point :),   the "x" value is the year, the "y" or f(x) value is the population, we're asked for the year, or the x-coordinate of the vertex
well   
 
 
        
             
        
        
        
Answer:
±
2
√
2
+
2
Step-by-step explanation: