Part A
1 hour = 60 minutes
0.5 hours = 30 minutes (multiply both sides by 0.5)
11.5 hours = 11 hours + 0.5 hours
11.5 hours = 11 hours + 30 minutes
11.5 hours = 11 hours, 30 minutes is the answer
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Part B
20% = 20/100 = 0.20
The lion sleeps 20% more than the cat, which means the lion sleeps 0.20*11.5 = 2.3 hours more
This leads to 11.5 + 2.3 = 13.8 hours being the total time the lion sleeps
1 hour = 60 minutes
0.8 hours = 48 minutes (multiply both sides by 0.8)
13.8 hours = 13 hours + 0.8 hours
13.8 hours = 13 hours + 48 minutes
13.8 hours = 13 hours, 48 minutes is the amount of time the lion sleeps