The answers are
1. 18
2. 1 1/15
Answer:

First tangent line:

Second tangent line:

Notice: slope of -1 means that both
are equal to -1, so 
Domain: (infinity, 4]
range: [-6, infinity)
The factors of 56: 1; 2; 4; 7; 8; 14; 28; 56
The factors of 84: 1; 2; 3; 4; 6; 14; 28; 42; 84
GCF(56; 84) = 28
C) 94 degree's
All triangles add up to 180 degree's
180 - ( 52+34) = 94
- R3KTFORGOOD ☕