First question
1:C 2:D 3:B 4:D
second question
0-2+5
Answer:

Step-by-step explanation:

Rule of exponents
, 
=> 
=> 
Combining same bases
=> 
When bases are same , powers are to be added
=> 
=> 
=> 
=> 
=> 9
Answer:
Upward, x intercept is (2,0) , y intercept is (0,1), axis of symmetry is 2, vertex is (2,0)
Step-by-step explanation:
Answer:
identical in form or shape
Step-by-step explanation:
two triangles could be congruent as they both have 3 sides.