1. Name?
2. The solution is 4600
Step-by-step explanation:
Left side: 18cm
Under that: 5cm
5cm again
Perimeter = 76
Because: 20 + 18 + 18 + 5 +5 +5 +5 = 76
Answer: 20.2 mph
Step-by-step explanation:
Given
Train travels 10.1 miles in half an hour i.e.
Distance 
time 
we know, 
Insert the values

The air resistance acting on the un-crumbled sheet is greater.
Step-by-step explanation:
13.8564064606
hope it helps