B) 4Na + O₂ → 2Na₂O
b) H₂ + Cl₂ ---> 2HCi
Hello there, this problem is just basic addition, here is what it would look like

Solve it and we get 78.21
What is the question supposed to be?
The domain of a function are the possible input values of the function.
<em>The domain of the function is (d) Whole numbers</em>
First, we identify the start and end values of x on the graph.
We have:

The graph has no end; so:

This means that the domain of the graph is 
The number of times one can visit the pool cannot be decimal.
Hence, the domain of the function is whole numbers
Read more about domain at:
brainly.com/question/15339465
Answer:
375
Step-by-step explanation:
trust me
:)