Anyone could help me with these questions?

Is defined as the use of material nonpublic information about a company to make investment profits. Underwriting Insider trading Thrift supervision Self-regulation The technique of increasing the rate of return on an investment by financing it with borrowed funds is called. financial plan selling short leverage hedge fund management An offer made by an outside investor or firm to the target firm's shareholders a(n). loin offer firm offer tender offer blind offer Explain the concept of risk-return trade-off