Answer:
I assume you're referring to an x-variable to hold in place of that number.
So the expression would be x + 4.
Hope this helps.
Answer:
<h2>
D. Two</h2>
Step-by-step explanation:
Two common points of the graphs (two intersects) means two solutions.
5s subshell represent that n is equal to 5 and l is equal to 0.
2p subshell represent that n is equal to 2 and l is equal to 1.
3d subshell represent that n is equal to 3 and l is equal to 2.
The numbers gives us the value of n and the letter gives us the value of l.
s means l = 0
p means l = 1
d means l = 2
f means l = 3