I'm not for sure but it could be 24/529 ???????????
If there are answer choices then put this one. Otherwise I really don't know
        
             
        
        
        
Answer:
0.3 or 30%
Step-by-step explanation:
Since no innocent student will ever be caught, the probability that a student sends an email and/or text message during a lecture AND gets caught is given by the product of the probability of a student sending a message (60%) by the probability of the professor catching them (50%) :

The probability is 0.3 or 30%.
 
        
             
        
        
        
Remember that the area of a square is just one of its sides squared. 

where 

 is the area of the square 

 is one of the sides of the square
Unit square is a square whose sides have length 1, so lets use our formula to find the volume of one unit square:



We now know that each one of the squares has area 1 unit squared. Since there are 28 unit square in our figure, we are going to multiply the area of a unit square by 28 to find the area of our figure:
Area of the figure=

 units squared 
We can conclude that the area of the figure is 28 units squared.
 
        
        
        
9y^3-y^2 is a required answer