E Ecosystems- Healthy ecosystems are essential for the survival and success of countless species on Earth. Scientists are studying the dynamics of these natural systems to assess the benefits of protecting existing ecosystems or restoring those that have been disrupted by human activities or invasive species. What else can be done to preserve these delicate, critical ecosystems?

Conor is 21 years old and just started working after college. he has opened a retirement account that pays 2.5% interest compounded monthly. he plans on making monthly deposits of $200. how much will he have in the account when he reaches 591 years of age?

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

Record the journal entry for the provision for uncollectible accounts under each of the following independent assumptions: a. the allowance for doubtful accounts before adjustment has a credit balance of $500. b. the allowance for doubtful accounts before adjustment has a debit balance of $250. c. assume that octoberʼs credit sales were $70,000. uncollectible accounts expense is estimated at 2% of sales. smith, gaylord n.. excel applications for accounting principles (p. 51). cengage textbook. kindle edition.