12/10 + 9/10 = 21/10
21/10 simplified is 2 1/10
Step-by-step explanation:
option c 120
earning (in$) for 8 dog houses = 40
earning (in$) for 1 dog house= 40/8 = 5
earning (in$) for 24 dog houses= 24×5 = 120
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!
Answer: Do you like my Vegito PFP
Step-by-step explanation:
It's pretty cool