Answer:
C because elements are form by atoms and when we study about atom we draw atom like circle
so, that's why I think C is correct
Step-by-step explanation:
Answer:
(1, 2)
Step-by-step explanation:
2x-y=0
4x-2=2
-----------
y=2x-0
y=2x
-------------
4x=2+2=4
4x=4
x=4/4=1
---------------
y=2(1)=2
x=1, y=2.
Answer:
13
Step-by-step explanation:
4 + 9
[ 9 + 2 = 11 ]
[ 11 + 2 = 13 ]