The rate of change is    (amount of the change) / (time it took to change) .
Amount of the change = (3 - 1) = 2 .
Rate of change = (2) / (time it took to change from  1  to  3) .
        
             
        
        
        
4y=5x+4
Divid by 4 to make slop intercept form 
Y=5/4y +1
Slop =5/4
        
                    
             
        
        
        
A magazine is much smaller than a meter stick. Although it would be possible to measure the dimensions of the magazine using the meter stick, since there are centimeter marking on them, a ruler would be a much more appropriate tool to use because of its similarity in size to the magazine.
        
             
        
        
        
Yes, it is the hypotenuse. You can use pythagoras' theorem or the sine rule. you can use either as long as you know the two other side lengths of the triangle
        
                    
             
        
        
        
It means you multiply 6.2 x 0.48 
which equals = 2.976
( ) mean multiply