Betty the cow gave 375 litres less than twice the amount from bessie the cow. together, betty and bessie produced 1464 litres of milk. how many litres did each cow give?

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.