ANSWER:

STEP-BY-STEP EXPLANATION:
We have the following expression:

In order to operate, we must first break the parentheses and then group similar terms, like this:
Answer:
J: 84%.
Step-by-step explanation:
I don't really know how to explain this one.
Answer:
7/11
Step-by-step explanation:
There are 11 letters in Mississippi and 7 of the consonants therefore the answer is 7/11