Can you check my answers?

1. 48lbs 6oz - 19lbs 9oz
= 47lbs 22oz - 19lbs 9oz
Ans: 38lbs 13oz

2. 3weeks 5days x 8
= 24weeks 40days; 40days=8weeks
Ans: 32weeks

3. 49 people are in line to see a movie. 17 are in front of Jackie. How many are behind her?
49 - 18 = 31
Ans: 31 people

4. A movie lasts 97 minutes. It starts at 4:30pm. what time will it end?
97mins = 1hr 37mins
4:30 + 1:37 = 5:67 (67min = 1hr 7min)
Ans: 6:07 pm

1. You made an error in arithmetic.

2. 40 days don't equal 8 weeks

3. Right

4. Right