Answer:
6n + 12 =40
Step-by-step explanation:
 
        
             
        
        
        
5 would be the dependent variable because the number 5 depends on how many greeting cards are bought.
        
             
        
        
        
14 is the answer bc u have to multiply 7x2 <3
        
             
        
        
        
Answer:
.33
Step-by-step explanation:
<em>Hey there!</em>
1 / 3
= .333333333
.33 rounded to the nearest hundredth
<em>Hope this helps :)</em>
 
        
             
        
        
        
24=2*12
P=2*(l+L)
⇒ L+l=12
    ⇒ for a maximum area l=5, L=7
Area=5*7=35