Like terms:
1.4c, -2c, -7.3c
11.4 has no like terms
        
             
        
        
        
Step-by-step explanation:
the slope is always the factor of x.
in slope intercept form, as well as here in point slope form.
the important thing is that the y term is just brought to a simple positive y form (and not cy with c is different than 1).
and then, what you see on the other side as factor is x is the slope. 
here : -7
the other numbers in the equating are irrelevant for the slope. they determine the "offset" of the line from (0, 0).
 
        
             
        
        
        
66 2/3%=2/3
First 66 2/3 converted to decimal is 66.67. Divide 2 by 3 to get the .67 the add the 66 to that number, hence 66.67%. 66.67 percent in fraction is 66.67/100. divide both numerator and denominator by 33.33 should be 2/3
        
             
        
        
        
26: connoisseur
27: engulf
28: emulate
29: stupefy
30: rudimentary
Just comment under my answer if you want the words’ explanations/meanings :)