I think Si is more reactive
3 nd 4
Step-by-step explanation:
hope this helps
Answer:
49/54
Step-by-step explanation:
7/9 + 7/54
42/54 + 7/54
49/54
As I understand, we need to evaluate the given rational expression, we will get that the evaluated expression is equal to - 1/10
<h3>
Evaluating expressions:</h3>
Evaluating an expression just means that we need to replace the variable in the expression for a given value, here we have the expression:

And we want to evaluate it in:

So we just need to replace k by that value in the above expression, we will get:

Now we can just solve this:

If you want to learn more about evaluating expressions, you can read:
brainly.com/question/4344214
Answer:
C is a letter on the alphabet
Step-by-step explanation:
you havent included any pictures so i dont know what you mean