Can someone provide me with an answer and an explanation please

The table below provides the total revenues and cost information for a small flower shop in a recent year. Calculate the explicit costs for this firm. (Show work) Total Revenues ($) 380,000 Total Costs ($) wages and salaries 60,000 rent 180,000 interest on bank loan 1,000 cost of supplies 42,000 depreciation of capital equipment 7,000 additional wages the owner could have earned in the next best alternative 45,000 risk-free return of 1% on owner's capital of $30,000 300 risk premium of 3% on owner's capital of $30,000 900The following data show the total output for a firm when specied amounts of labour are combined with a fixed amount of capital. When answering the questions, you are to assume that the wage per unit of labour is $25 and the cost of the capital is $175. (Show work) Calculate the following: a) The total variable cost of producing 250 units unit of time - b) The average total cost of producing 75 units of output. c) As output increases from 175 to 250, calculate the marginal cost