Step-by-step explanation:
Go 2.5 units to the right from the origin (0,0) for your x coordinate 
Go 2.5 units down from the origin (0,0) for your y coordinate
Where the lines meet is your point.
 
        
             
        
        
        
Hello :
cos60 = cos(-60)=0.5
        
             
        
        
        
Answer:
7 x 4 = 28
28 x 1/2(dividing by 2) = 14, 14 x 2(two triangles) = 28
4 x 5 = 20(area of square in the middle)
5 x 8 = 40(area of square on one side), 40 x 2 = 80(area of squares on both sides)
Now lets add the given areas:
28 + 20 + 80 = 128 square is your answer.
 
        
             
        
        
        
Answer: 22
Step-by-step explanation: 
 4 - (-18) = 4 + (+ 18) = 22
 
        
             
        
        
        
You have to rotate it around (0,1) by 90 degrees