Answer:
Let X be the number of weeks.
2x - 16 = 14
we add 16 on both sides.
2x = 30
now we divide 2 on both sides to get rid of the 2 to the x, we want to get x on its own.
X = 15
The correct answer is (10,-20), because the equation already gives you the correct x value. Then, from there you just plug 10 in for x in the y equation. Giving you a -20, :)
For this case we must factor the following expression:

We take common factor 5:

We have two groups within the parentheses:
Group 1: 
Group 2: 
We factor each group:
Group 1: 
Group 2: 
Rewriting we have:

Answer:

Answer:
-9/4
Step-by-step explanation:
Let us first convert the mixed number to improper:
-6 3/4 = -27/4
1/3 * -27/4 = -27/12, or -9/4
<em>I hope this helps! :)</em>