Answer:217,000,000,000 (or just plain 217000000000)
Step-by-step explanation:7% is 0.07.
0.07 * 3.1 trillion
 
        
             
        
        
        
Answer:
x=3
z=65
Step-by-step explanation:
6x+97 and 14x+73  are vertical angles which means they are equal
6x+97= 14x+73
Subtract 6x from each side
6x-6x+97= 14x-6x+73
97 = 8x +73
Subtract 73 from each side
97-73 = 8x+73-73
24 = 8x
Divide each side by 8
24/8 = 8x/8
3 = x
Now we need to find z
6x+97  and z are supplementary angles which means they add to 180
6x+97 +z = 180
6(3) +97 +z = 180
18+97+z=180
Combine like terms
115+z = 180
Subtract 115 from each side
115-115 +z=180-115
z = 65
 
        
             
        
        
        
X=15
Just divide 5x by 5 and 75 by 5
        
             
        
        
        
False. Anything times 0.8 except 0, is 0.8 or more.
 
        
             
        
        
        
The formula to find the slope of a line is 

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I'm not sure if my fraction looks right, so I'll add it in a separate attachment too.