Answer:
3052.08 m³
Step-by-step explanation:

Given that the radius is 9m, r=9.
Volume of sphere

= 3052.08 m³
It should be 20x because you multiply what’s on the outside (5) with what’s on the inside (4x) which Is also called distributing. :)
Answer:
The airplane is 12 ft long.
Step-by-step explanation:
If one inch is 2 feet in real life, if there are six inches, that means there are 12 feet because it is a one to two ratio. :)
Answer:
The ride lasts 10 minutes.
Step-by-step explanation:
The triangle that is formed is attached.
In order to find out how long the ride lasts, we need to figure out the horizontal distance 
From trigonometry we have:

Therefore

Now the amount of time
the gondola ride lasts is equal to the distance
divided by the speed of the gondola:

To the nearest minute this is 10 minutes.
Answer:
Step-by-step explanation:
r=13in
Perimeter of a circle is 2πr
P=2×22/7×13
P=81.71in.
If it will make 3 revolution then it will have move 3 times it perimeter
3×81.71
245.14in
The distance the wheel will traveled is 245.14in