Answer:
12 feet
Step-by-step explanation:
4 times 3 is 12 and that is how u find area I think
The second answer is D) it will increase 8 times
Answer:
D
Step-by-step explanation: I just took the quiz.
Answer:
0.25
Step-by-step explanation:
1 divided by 4 = 0.25
Answer:
There is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.
Step-by-step explanation:
First, we need to calculate the volume of each balloon by considering the balloons as a sphere:

Where:
r: is the radius = 0.4 meters

Knowing that 1 m³ of helium is able to lift about 1 kg, that Mr. Schordine weights 84 kg, and that each ballon has 0.27 m³ of helium, the number of balloons needed are:
Therefore, there is needed around 311 balloons to fulfill Mr. Schordine’s dream of flight.
I hope it helps you!