Slope: 1.5 
y-intercept: -2
Explanation:
The slope is the number attached to 'x' in the equation. In this case, 1.5 would be the slope because it's attached to x.
The y-intercept is the constant the number not attached to any variables. In this case, -2 is all by itself. 
Hope that helps! 
:D®
        
                    
             
        
        
        
<u>Answer</u>
 3×(2×5)
<u>Explanation</u>
Multiplication of numbers is associative. For example, 
(a×b)×c = a×(b×c)
This is also called grouping. We multiply more than 2 numbers by grouping. 
For the equation given above, (3x2)x5, it can also be grouped as 3×(2×5).
 
        
                    
             
        
        
        
Ok so area is length times width. A square has the same sides all around, which is called a quadrilateral. So you would plug in 40 for length and width. 40x40= 1,600 cm^2 <———— is your answer. 
Hope this helped :)