It is +247.
The answer is: 254+(-247) = 7
30.875
247 months is equivalent to 20 years and 7 months.
31 + 216 = 247
6.175
35.2857
35.2857
35.2857
247 Days ÷ 7 Days/Week = 35 weeks. 35 weeks x 7 Days/week = 245 Days 247 Days - 245 Days = 2 Days. So 247 days is 35 weeks and 2 days.
247.1429
4 hours and 7 minutes.