The simplified equation is 2ab, so the coefficient would be 2.
The answer is the first one A. sss Postulate
Step-by-step explanation:


Let assume that

We know,

So, using this, we get

Now, we use Method of Substitution, So we substitute

So, above expression can be rewritten as




So,

Thus,





<u>Hence, </u>

<u>Hence, Option (d) is </u><u>correct.</u>
Answer:
-7n - .9
Step-by-step explanation:
By distributing the - to the parentheses, you must add a - sign to each number in the parentheses. This makes the positives turn negative.