Financial accounting related questions see detail?

Financial accounting related questions see detail?
a) How does accounting information assist management in measuring efficiency and effectiveness? (10 Numbers) (b)Do the terms ?financial reporting? and ?financial statement? mean the same thing? Explain. (10 Numbers) (c)Why are investments in marketable securities usually recorded as current assets? (10 Numbers) These questions are of 30 Numbers of my assignment. I need a detailed answer of these questions. If someone cannot answer these questions in detail give me links of experts which can help me.