Let x the number od milles travelled, since the taxi charge $2 per mille, multiplying this by the miles travelled (x) will yield the cost of the taxi ride as far as how far it took you
2x
Then adding this amount to the cost of the taxi ($4) bcz is the set fee, it will give you the total cost of the taxi ride (that should be less (<) than $20)
2x + 4 < 20
To graph the Inequality, we have to clear variable "x"
[tex]2x+4\ \textless \ 20
\\ 2x\ \textless \ 20-4
\\2x\ \textless \ 16
\\\\x\ \textless \ \frac{16}{2}
\\\\x\ \textless \ 8[/tex]
