Petra contractorscted to paint bret's house for $2000 afer beginning the job , petra realize that the house is really quiet big and she's not going to make enough profit .So she tells Bret she wants another $500 to finish the job. Bret doesn't want to pay more , but he's afaid that if she walks off the job, he'll have trouble finding someone else to finish it so he agrees. Required:
Is Bret leagally obligated to pay the extra a $500?

Suppose life expectancy in years (l) is a function of two inputs, health expenditures (h) and nutrition expenditures (n) in hundreds of dollars per year. the production function is upper l equals ch superscript 0.40 baseline upper n superscript 0.60l=ch0.40n0.60. beginning with c = 1, a health input of $400400 per year (hequals=44) and a nutrition input of $400400 per year (nequals=44), show that the marginal product of health expenditures and the marginal product of nutrition expenditures are both decreasing. the marginal product of health expenditures when h goes from 44 to 55 is nothing, and the marginal product of health when h goes from 66 to 77 is nothing. (round your answers to three decimal places.)