When Ajax co. Produced 3 units of output per week, its total fixed cost was $100 and total variable cost was $45. When output increased to 4 units per week, total fixed cost remained at $100 and total variable cost increased to $65.

When output was 4 units per week, total cost was $___.

When output was 4 units per week, average variable cost was $___.

When output was 4 units per week, average fixed cost was $___.

When output was 4 units per week, average total cost was $___.

The marginal cost of producing the fourth unit was $___.

Please round answers to two decimal places.

Laws corporation is considering the purchase of a machine costing $16,000. estimated cash savings from using the new machine are $4,120 per year. the machine will have no salvage value at the end of its useful life of six years and the required rate of return for laws corporation is 12%. the machine's internal rate of return is closest to (ignore income taxes) (a) 12% (b) 14% (c) 16% (d) 18%

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?

Nthis economy, community members typically use simple tools to plant and harvest crops. food supplies are supplemented by hunting animals and gathering plant materials. members trade with each other to obtain needed goods, as few people hold currency. little economic growth occurs. what type of economy is being described?