Arigid tank having a volume of 0.100 m3 contains helium gas at 150 atm. how many balloons can be inflated by opening the valve at the top of the tank? each filled balloon is a sphere 0.300 m in diameter at an absolute pressure of 1.20 atm

The initial value of P*V = 0.100*150 atm-m³ 
 Each balloon has a volume of (4/3)*π*r³ and N balloons have a volume of N*(4/3)*π*r³ 
 When all the balloons are inflated, the pressure in the tank is the same as the pressure in the balloons, so the final value of P*V is 
 1.20*[N*(4/3)*π*r³ + 0.100] 
 0.100*150 = 1.20*[N*(4/3)*π*r³ + 0.100] solve for N: 
 15/1.2 = N*(4/3)*π*r³ + 0.100
 12.5 - 0.100 = N*(4/3)*π*0.150³ 
 12.4 = N*0.01414 
 N = 877

Cannot be determined because i dont  know this but i need the points

When calculating percentage we need two numbers. one number represents total amount of certain thing and another number represents partial number of that thing. then we divide those two numbers.in this problem total amount represents total number of weeds growing on some surface. partial number represents chicory.percentage = partial / total * 100%percentage = 29 / 98 * 100%percentage = 29.6%our calculation is closest to answer b) so this is our correct answer.