Answer:
The correct answer is C. 
Step-by-step explanation:
I took the test
 
        
                    
             
        
        
        
Answer:
It would be C
Step-by-step explanation:
 
        
             
        
        
        
Answer:
2, 3, 5, 7
Step-by-step explanation:
prime numbers between 1 to 10 are 2,3,5,7. it's very easy. 1 is not prime number because it behave as both prime and composite.
 
        
             
        
        
        
Answer: The length of BC is 7
Step-by-step explanation: Assuming the lengths of the opposite sides of the quadrilateral are congruent, then
AB=DC and 
AD=BC
Inputting the values of AB, DC and AD as given in the question:
x + 8 = 3x ...(1)
x + 3=? ...(2)
We have to solve for the value of x to get the actual lengths and thus ascertain BD. 
From equation (1):
8 = 3x - x
8 = 2x 
8/2 = x
Therefore, x = 4.
If x = 4 then equation(2) would be
 4 + 3= 7.
Hence, the actual lengths of the quadrilateral are:
AB = 4 + 8. DC = 3(4)
 =12. =12.
AD = 4 + 3. AD = BC 
 = 7. Therefore, BC = 7.
Hence, it is confirmed that quadrilateral ABCD is a parallelogram since both the opposite sides are proven to be congruent.
 
        
             
        
        
        
Answer:
864
Step-by-step explanation:
AT= 2Area base+ph
AT= 2(12*12) +(12*4)12
AT=2 (144)+576
AT= 288+576
AT=864"