Step-by-step explanation:
It is given that,
The height of the sail on a boat is 7 feet less than 3 times the length of its base. 
Let the length of the base is x. 
ATQ,
Height = (3x-7)
Area of the sail is 68 square feet.
Formula for area is given by :

x = 8 feet and x = -3.73 feet
So, length is 8 feet
Height is 3(8)-7 = 17 feet.
So, its height and the length of the base is 17 feet and 8 feet respectively. 
 
        
             
        
        
        
Hey there,
Your question states: <span>The area on a wall covered by a rectangular poster is 294 square inches. The length of the poster is 1.5 times longer than the width of the poster. What are the dimensions of the poster? </span>

Your correct answer would be 

Hope this helps.
 
        
        
        
Answer:
It is hard to see the numbers.
But I am pretty sure it is 6x+6.
Step-by-step explanation:
Hope this helps! :D
 
        
             
        
        
        
Answer:Can somebody please help
Step-by-step explanation: