ANSWER
The total length of the trip to and from work in August is
[tex] 403.2 \: miles[/tex]
EXPLANATION
The total length of the trip to and from work is
[tex]19.2 \: miles[/tex]
If Jonah worked 21 days in August,
Then, the total length of the trip to and from work is
[tex] = 21 \times 19.2 \: miles[/tex]
Change the decimal to fraction and multiply,
[tex] = 21 \times \frac{192}{10} miles[/tex]
[tex] = \frac{21 \times 192}{10} [/tex]
[tex] = \frac{4032}{10} miles[/tex]
Convert back to decimal
[tex] = 403.2 \: miles[/tex]
