Answer: 285.2 kg
Step-by-step explanation:
Given
The volume of helium in the balloon is 
The density of the helium is 
Mass of the helium gas is given by the product of density and volume

Thus, the mass of gas is 285.2 kg
Answer: 6-
Step-by-step explanation:
Answer:
12/19
Step-by-step explanation:
19/19 - 7/19 = 12/19
25 Lbs because 348 oz in Lbs is 21.75 Lbs
Answer:
-7a+11
Step-by-step explanation: