Mrs. Kwan withdrew the entire $8,000 balance from her Roth IRA this year. Her total contributions to the account were $6,070, and her marginal tax rate is 12 percent. Determine the tax cost of the withdrawal if: Mrs. Kwan is age 63 and opened the Roth IRA three years ago. Mrs. Kwan is age 63 and opened the Roth IRA seven years ago. Mrs. Kwan is age 48 and opened the Roth IRA seven years ago.

Following are the transactions for valdez services. the company paid $2,000 cash for payment on a 6-month-old account payable for office supplies. the company paid $1,200 cash for the just completed two-week salary of the receptionist. the company paid $39,000 cash for equipment purchased. the company paid $800 cash for this month’s utilities. the company paid $4,500 cash in dividends to the owner (sole shareholder). examine the above transactions and identify those that create expenses for valdez services. prepare general journal entries to record those transactions that created expenses in the above given order.

You are the manager of a firm that produces output in two plants. the demand for your firm's product is p = 20 − q, where q = q1 + q2. the marginal costs associated with producing in the two plants are mc1 = 2 and mc2 = 2q2. how much output should be produced in plant 1 in order to maximize profits?

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)