Identify the item below that would cause the trial balance to not balance?a. A $1,480 collection of an account receivable was erroneously posted as a debit to Accounts Receivable and a credit to Cash. b. The purchase of office supplies on account for $3,260 was erroneously recorded in the journal as $2,360 debit to Office Supplies and $2,360 credit to Accounts Payable. c. A $290 cash receipt for the performance of a service was not recorded at all. d. The purchase of office equipment for $2,400 was posted as a debit to Office Supplies and a credit to Cash for $2,400.e. The cash payment of a $1,230 account payable was posted as a debit to Accounts Payable and a debit to Cash for $1,230.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

Afirm’s production function is represented by q(m,r) = 4m 3/4r1/3, where q denotes output, m raw materials, and r robots. the firm is currently using 6 units of raw materials and 12 robots. according to the mrts, in order to maintain its output level the firm would need to give up 2 robots if it adds 9 units of raw materials. (a) true (b) false

Perry is a freshman, he estimates that the cost of tuition, books, room and board, transportation, and other incidentals will be $30000 this year. he expects these costs to rise about $1500 each year while he is in college. if it will take him 5 years to earn his bs, what is the present cost of his degree at an interest rate of 6%? if he earns and extra $10000 annually for 40 years, what is the present worth of his degree.?