How does the Constitution protect state and federal powers?

Ihave made a dive then stayed on the surface for a while. after this surface interval my pressure group is k. what is the maximum amount of bottom time available when doing a repetitive to 17/56 feet

Savings are transferred to businesses for investment through a) banks and financial institutions b) the federal government c) major corporations d) consumer purchases e) state and local governments

Which allows college students to work part time jobs to pay for educational expenses ?