90+85=175
Thats the answer
        
                    
             
        
        
        
Answer:
 about 340,000
Step-by-step explanation:
In 10 years, the population dropped to 0.88 of what it was in 2010. At the same rate, in 20 more years, it will drop to 0.88² of what it was in 2020:
 2040 population = 440,000·0.88² ≈ 340,000
 
        
                    
             
        
        
        
Answer with explanation:
Number of four digit numbers using four distinct digit
          =Unit placed can be filled in four ways * Tens place can be filled in Three ways * Hundreds place can be filled in 2 ways * Thousand Place can be filled in a single way
=4*3*2*1
=24 distinct numbers
Sum of all four , four digits numbers using 1,2,3,4
           = (If we keep 4 at unit place +Keeping 3 at unit place +Keeping 2 at unit place+Keeping 1 at unit place)×6+At tens place (2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)+At hundred's place (2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)+At thousand's Place(2*2+3*2+1*2+4*2+2*2+1*2+1*2+3*2+4*2+2*2+3*2+4*2)
=(24+18+12+6)Unit place+(60)Ten's place +(60)Hundred's place+(60)Thousand's Place
=66660
 
        
             
        
        
        
Answer:
The equations are really hard, so if you can find a slope interpreter or something that might be helpful. 
I find it easier to just count the up and across.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
75%
Step-by-step explanation:
Percent means out of 100 
so 100-25= 75