If 

 and 

 are <span>supplementary angles, then

The ratio of 

 and 

 is 

<span>

Substitute 

 into 


From 

 we find the measure of 


</span></span>
 
        
             
        
        
        
Answer:
E, F, B, and C
Step-by-step explanation:
Im just learning about these kind of things and this is a challenging question not going to lie.
I chose B because expanding and building more factories is apart of economics. You need more land to expand your business, but this will also affect the economy. 
C seems like a good answer also because writing about economic trends is an important thing in economics. This also helps others learn out the economy and what not to do and what to do to help make our environment a better place. 
I chose E because starting a business is apart of economics. A lot of business are apart of economic systems and help money come into our economy. 
F is a good answer for me because the U.S government has been apart of America's economic system for a long time just like they are involved with everything else. The government is a big help and a big part of our economy, especially for america. 
 
        
             
        
        
        
In order to solve for r you have to place all the number in one side. then isolate r ......  r=1
        
             
        
        
        
So you just need to use the crocodile signs < or >
As j is less than 113 we put j on the smaller side and 113 on the bigger side to make:
j<113