Which statement is true?
a.
you cannot use personal savings to pay for college.
b.
student loans are based only on merit or achievement.
c.
work-study jobs are usually part-time positions.
d.
grants and scholarships must be repaid.

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.