Gavin thought he was making a good investment when he heard about an online grocery company. so he bought 500 shares in the company at $25 a share. the company ended up going bankrupt, and when gavin sold his shares he only made $150 in total.

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.