Respuesta :
Answer:
$2.51
Step-by-step explanation:
π(1²)=3.142
3.142×0.80=2.51
It would be 2.51 would be the cost of filling the balloon with helium
Answer:
$2.51
Step-by-step explanation:
π(1²)=3.142
3.142×0.80=2.51