The product is 7/2. Hope that helps
Let
A-----> 
B-----> 
C-----> 
we know that
Point A-------> Multiply numerator and denominator by 

Point B-------> Multiply numerator and denominator by 

Point C-------> Multiply numerator and denominator by 

Find the distance Point A to Point C

Find the distance Point B to Point C

therefore

Point B is closer to Point C
is closer to 
the answer is
is closer to 
0.7777777778
there you go your welcome
Answer:
1. x>20 2. x≤1 3.x<4 4.x>9 5.x≥-13