When the balance of trade is in balance, we know with certainty that a. the value of capital exports equals the value of capital imports. b. the value of exports of goods equals the value of imports of goods. c. the value of all debit transactions equals the value of all credit transactions. d. the value of exports of goods and services equals the value of imports of goods and services.

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.

Slow ride corp. is evaluating a project with the following cash flows: year cash flow 0 –$12,000 1 5,800 2 6,500 3 6,200 4 5,100 5 –4,300 the company uses a 11 percent discount rate and an 8 percent reinvestment rate on all of its projects. calculate the mirr of the project using all three methods using these interest rates.

Suppose the production function in an economy is y = k0.5l0.5, where k is the amount of capital and l is the amount of labor. the economy begins with 64 units of capital and 16 units of labor. use a calculator and equations in the chapter to find a numerical answer to each of the following questions. what are the wage and the rental price of capital? the wage is equal to unit(s) of output and the rental price of capital is equal to unit(s) of output.