You could use many methods to find the answer to this problem, but I am going to use the most efficient one I know.
18f+15(4f)=156
F is for fins. We should now solve the equation.
18f+60f=156
78f=156
156÷78=2
So fins cost 2 dollars. Now, we know snorkels cost four times the amount of fins. Four times 2 is eight. So the snorkels cost $8 to rent. Let's check our math.
15(8) + 18(2)
120+36=156
So it cost $8 to rent a snorkel.
        
                    
             
        
        
        
Answer:
Lisa will need  of wood framing
 of wood framing
Step-by-step explanation:
we know that
The perimeter of rectangle is equal to

In this problem we have


convert to cm
Remember that  

substitute the values and solve the perimeter

 
        
             
        
        
        
Answer:
8/100 + 8/100 + 32/100 = 48/100
48/100 / 4/4 = 12/25
Step-by-step explanation:
 
        
             
        
        
        
The two systems have the same solution.
The correct answer is 3) since the first equation of system B is indeed the addition of the first equation of system A and 4 times the second equation of system A.
Answer: 3)