1. 7 hours and 40 min
2. 1 hour and 24 min
3. 4 hours and 45 min
4. 8 hours and 48 min
Answer:
<u>6b - 4a + 22 units</u>
Step-by-step explanation:
Perimeter = 2(length + width)
= 2(3b - 4a + 5 + 6 + 2a)
= 2(3b - 2a + 11)
= <u>6b - 4a + 22 units</u>
Answer:
81 mm is more precise
Step-by-step explanation:
millimeters are smaller than cm
8 cm * 10 mm/1 cm = 80 mm
compared to 81 mm
81 mm is more precise
The answer would be 11,000
