If we want to compute 
, we have to substitute every occurrence of 
with 
in the definition of the function:
Similarly, computing 
means to substitute the input with 2:
So, we have
And finally
9 people because you subtract 50 from 100 then divide 50 divided bt 5.50. its not a flat out number so you have to round down to 9.
The answer is 45 because it has to be multipled etc
1 gallon of gas for William= 37.76 ÷ 16= 2.36 $
1 gallon of gas for Regina= 14.64 ÷ 6= 2.44 $
so william got a better deal per gallon.
