Answer:
{ x | x < 5}
Step-by-step explanation:
2(4 x + 3) < 5 x + 21
8x + 6 < 5x + 21
3x < 15
  x < 5
Answer
{ x | x < 5}
 
        
             
        
        
        
I think only the first two
        
                    
             
        
        
        
Answer: I got the answer by adding and subtracting 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
This problem requires us to calculate, the value of investment after 10 and 25 years, and also tell the time after which intial investment amount will double. Investment rate and initial investment amount is given in the question. 
Value of investment after 10 year = 600(1+8%)^10 = $ 1,295
Value of investment after 25 year = 600(1+8%)^25 = $ 4,109
Time after which investment amount double (n)
1200 = 600 (1.08)^n
Log 2 = n log 1.08
n = 9 years 
 
        
             
        
        
        
D
An acute angle is less than 90 degrees