At a snack stand, Nathan buys 2 sodas and 1 snack and spends $5. Olivia buys 3 sodas and 4 snacks and spends $15. Set up the system of
equations.

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.