Answer:
The equal amount is 525
.
Step-by-step explanation:
Given that,
Eric and his two sister shared amount of money in ratio2:7 respectively.
Amount with Eric = 300
It means,
2x = 300
x = 150
So,
7x = 7(150)
= 1050
As the remaining amount shared equally among the sister. So, the equal amount is 525
.
 
        
             
        
        
        
Answer 
Find the volume of the coin is cubic millimeters.
To prove
Formula

Where r is the radius and h is the height .
As given
The $1 coin depicts Sacagawea and her infant son.
 The diameter of the coin is 26.5 mm, and the thickness is 2.00 mm. 


Radius = 13.25 mm

Put in the formula
Volume  of  coin  = 3.14 × 13.25 × 13.25 × 2.00
                              = 1102.53 mm³ (approx)
Therefore the volume of the coin is 1102.53 mm³ .
 
        
             
        
        
        
Answer:
the first statement is: AB is congruent to DC. 
reason: given
Step-by-step explanation:
im not sure about the others 
 
        
             
        
        
        
Answer:
 trinomial 
Step-by-step explanation: