Answer:
Step-by-step explanation:
question one: his mom will pay $2.1 in taxes
thats all i can answer 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
2x=5
x=2.5
 
        
             
        
        
        
You can't take away 6 from 2 but you can switch them and get 6-2 and that's =4 10-8=2 7-5=2
        
             
        
        
        
9 < x
this means that x is a larger number than 9
9 = x
this means that x is equal to 9
 
        
             
        
        
        
Ages of Dan and Cary are 29 and 33 respectively. 
<u>Step-by-step explanation:</u>
Step 1: 
Form equations out of the given details. Let the age of Dan be x, then age of Cary is x + 4. 
In 7 years, sum of their ages = 76
⇒ (x + 7) + (x + 4 + 7) = 76
⇒ 2x + 18 = 76
⇒ 2x = 58
⇒ x = 29
Step 2: 
Calculate age of Cary.
⇒ x + 4 = 33