Let abcdefgh be a cube.
a) how many different segments can you form by connecting the vertices of the cube?
b) how many different triangles can you form by connecting 3 of the vertices of the cube?

Jackson earns $25 per hour as a tutor at the college library. he set a weekly spending budget of $130 each week and puts the remaining money in his savings account. how many hours must he work this week to have at least an extra $50 to put in his savings account