Answer:(15+6)÷3
Step-by-step explanation:
You add 15 and 6 to get the total, the divide by 3 to see how much each person pays.
 
        
             
        
        
        
Answer:the diagonal lengths are equal 
Step-by-step explanation:
 
        
             
        
        
        
(1.35)(27)= 36.45(0) = 0 (13) = 13
        
                    
             
        
        
        
RO divides the rectangle into two congruent right triangles.
The area of the one triangle is equal half area of the rectangle.
Calculate the area of rectangle: 

The area of right triangle:

Use the Pythagorean theorem to calculate the length of RO:

The formula of an area of this right triangle is:

Therefore we have the equation:

 
        
             
        
        
        
300 is 10 times as much as 30.
because if you do 30 x 10 you get 300