To find out how long Jeff practiced during the week, you can multiply the number of practices by the duration of each practice.
Jeff has 3 practices, and each practice is \( \frac{3}{4} \) hour long.
\[ \text{Total practice time} = \text{Number of practices} \times \text{Duration of each practice} \]
\[ \text{Total practice time} = 3 \times \frac{3}{4} \]
Now, perform the multiplication:
\[ 3 \times \frac{3}{4} = \frac{9}{4} \text{ hours} \]
To convert \( \frac{9}{4} \) hours into hours and minutes:
\(\frac{9}{4}\) hours is equal to \( 2\) hours and \( \frac{1}{4} \) of an hour.
Since \( \frac{1}{4} \) of an hour is 15 minutes (because \( 60 \div 4 = 15 \)):
Thus, \( \frac{9}{4} \) hours is equivalent to 2 hours and 15 minutes.
Therefore, Jeff practiced for a total of 2 hours and 15 minutes during the week.