Answer:
option D

Step-by-step explanation:
An expression is undefined when you get division by zero or in simple words when denominator is zero.
Now we will solve each expression one be one by plugging value of x = 0
<h3>1)</h3><h3>

</h3>

-4/-3 = 4/3
<h3>2)</h3><h3>

</h3>

0/-3 = 0
<h3>3)</h3>


6/1
6
<h3>4)</h3>


<h3>-8/0</h3><h3>undefined</h3>
Ratio given 1:2
Let's suppose the ratio as x : 2x
Adding the ratio = 3x


40 and 80 are in the ratio 1:2 of 120.
Hope it helps!!!
If the X are the same then remove it n it's a function
Answer:

Step-by-step explanation:
Point-slope form.

Answer:
Step-by-step explanation:
both angles must add up to 180 so
6x+12+3x+63 must =180
= 9x+75
9x+75=180
-75 -75
9x=105
x=11.66
meaning A is approximately 81.96