Answer:
QR and SV
RS and TU
Step-by-step explanation:
The number is 21 because 2 is 1 doubled, and 2+1 is 3.
Answer:

Step-by-step explanation:
Given
Winning Percentage = 0.444 repeating
Required
Represent as a fraction
Represent the percentage with x

Convert to fraction

Next step, is to convert to fraction repeating
To do this, we simply subtract 1 from the denominator


Simplify to the lowest term: Divide numerator and denominator by 37


Simplify to the lowest term: Divide numerator and denominator by 3


Hence;
There winning fraction is 
B, the inverse is not a function, because to the x-value 0 the inverse relation orders two values: the 1 and the 5 as well.