Im guessing he answered 30 correct, let me know if im correct
Answer:
B. F, Cl, Br, I
Step-by-step explanation:
The atomic nunbers are 9, 17, 35, 53
Have a good day!
It is not paralell because they are all in a line, that makes them series, because theyare one after the other
open means that they won't light up
short circuit I don't know
answer is B
Answer: can't get enough info.
a = 11
Step-by-step explanation:
a + 15 = 3a - 7
-a -a
15 = 2a - 7
+7 +7
22 = 2a
/2 /2
11 = a
