I don't understand word problems and if I get the same lady don't leave me I left you because I was finished and I gave you a good rating so please don't leave

The mechanic charges $24 per hour. Also, labour was charged for 1 3/4 hours. Therefore, the total labour cost is,
[tex]L=24\times1\frac{3}{4}=24\times\frac{7}{4}=42[/tex]Now, the total bill is,
[tex]T=42+9+12+4.79=67.79[/tex]Therefore, the total bill is $67.79.