PLEASE HELP IM SO BEHIND- economics! What type of economic system is this?:

90% of businesses are privately-owned.
Medical care for all individuals is free.
Parents, (both mothers and fathers) are guaranteed 12 months paid leave from work.
College education is free.
High tax rates. On average, half of a person’s income goes to taxes.

+explaination please

Acompany set up a petty cash fund with $800. the disbursements are as follows: office supplies $300 shipping $50 postage $30 delivery expense $350 to create the fund, which account should be credited? a. postage b. cash at bank c. supplies d. petty cash

Issued to the joint planning and execution community (jpec) initiates the development of coas; it also requests that the supported ccdr submit a commander's estimate of the situation with a recommended coa to resolve the situation (joint force command and staff participation in the joint operation planning and execution system, page 10)

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d