2.5x + 4x = 39
6.5x = 39
x = 39 / 6.5
x = 6
        
                    
             
        
        
        
Answer: 1/6
Step-by-step explanation:
 
        
                    
             
        
        
        
Hello from MrBillDoesMath!
Answer:
For y = 4x, the domain of the function is all real numbers. This can be indicated  as ( -infinity, infinity),
...later part of question:...
..."because an exponent can be any real"
 
exponent?   !!!
Did you mean y = 4^x ? In this case the domain of y is all real numbers ann the range is (0, infinity), where the value 0 is not included in the range.
Thank you,
MrB
 
        
                    
             
        
        
        
Answer:
dis dude giving me lecture rn so c\ant answer the best
Step-by-step explanation:sheeesh 
(23423)