Betty runs a cookie shop where she sells cookies for $1 each. she employs five people, each of whom worked a total of 500 hours last year; she paid them $10 per hour. her costs of equipment and raw materials add up to $75,000. her business ability is legendary, and other companies have offered to pay betty $100,000 to come to work for them. she also knows she could sell her cookie shop for $150,000. the bank in town pays an annual interest rate of 3% on all funds deposited with it. reference: ref 9-18 (scenario: betty's cookie shop) betty's implicit and explicit costs are equal to: a. $80,000. b. $184,500. c. $100,000. d. $204,500. show

The monthly demand equation for an electric utility company is estimated to be p equals 60 minus left parenthesis 10 superscript negative 5 baseline right parenthesis x, where p is measured in dollars and x is measured in thousands of killowatt-hours. the utility has fixed costs of $3 comma 000 comma 000 per month and variable costs of $32 per 1000 kilowatt-hours of electricity generated, so the cost function is upper c left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 32 x. (a) find the value of x and the corresponding price for 1000 kilowatt-hours that maximize the utility's profit. (b) suppose that the rising fuel costs increase the utility's variable costs from $32 to $38, so its new cost function is upper c 1 left parenthesis x right parenthesis equals 3 times 10 superscript 6 baseline plus 38 x. should the utility pass all this increase of $6 per thousand kilowatt-hours on to the consumers?