Answer:
D: 1 hour 48 minutes
Step-by-step explanation:
9 hours as minutes would be 540 minutes. 1-0.25-0.3-0.25=0.2. Nathaniel spent 20% of the 540 minutes reading. 0.2•540=108. 108 minutes is 1 hour and 48 minutes.
D. 1 hour 48 minutes
100-25-25-30=20
20% was spent reading.
20% of 9 is 1.8
1.8 hrs is 1 hrs and 48 mins.
