ok thank you so much for the info
 
        
             
        
        
        
Answer:
c. 
Step-by-step explanation:
Law of sines
 =
 =  
 
A and B are angles.
a and b are sides opposite corresponding angles. 
 
        
             
        
        
        
Answer:
y = 60
Step-by-step explanation:
<h3>Step 1: Make sense of the given</h3>
"The ratio of y to x is 3"
This means that, 
"The sum of y and x is 80"
This means,  
<h3>Step 2: Make use of the facts</h3>
If  , then
, then  .
. 
We can plug this into the other equation by substitution:

This simplifies to:

Which we can solve out and get:
 .
.
<h3>Step 3: Plug and Chug</h3>
We solved for x, but we need the value of y. 
So, we go back to the equation we first derived: " ".
".
And now we substitute the value of x, into this.

By solving this out, we get:

So, the value of y is 60.
 
        
             
        
        
        
Answer:
See attachment
Step-by-step explanation:
We want to graph the line with slope 

and y-intercept , 

The equation of this line is 

Starting at -7 on the y-axis, we run 5 units and rise 2 units right.
Then draw a line through the y intercept and the new point 
The graph is shown in the attachment.
 
        
             
        
        
        
Answer:
D) 40
Step-by-step explanation:
triangles equal to 180 degrees
2x+10+x+50=180
3x+60=180
3x=120
x=40