Answer:
The answer is "[tex]\bold{- \frac{19}{13} \ / hour}[/tex]"
Step-by-step explanation:
Please find the complete question in the attached file.
Calculating the difference of [tex]9 \frac{1}{4}\ and \ 4 \frac{1}{2}[/tex] dividing the value by [tex]3 \frac{1}{4}[/tex]
[tex]\to 4 \frac{1}{2} - 9 \frac{1}{4}\\\\ \to \frac{9}{2} - \frac{37}{4}\\\\ \to \frac{18-37}{4} \\\\ \to -\frac{19}{4}\\\\\to -\frac{19}{4} \div \frac{13}{4}= -\frac{19}{4} \times \frac{4}{13} = -\frac{19}{13}\\[/tex]
