Why is making a record of withdrawals and deposits in your checkbook register a good practice?

Jaynet spends $30,000 per year on painting supplies and storage space. she recently received two job offers from a famous marketing firm – one offer was for $85,000 per year, and the other was for $120,000. however, she turned both jobs down to continue a painting career. if jaynet sells 40 paintings per year at a price of $4,000 each:

According to the research in strategic human resources management, answers: firms that are able to use human resource practices to develop socially complex human and organizational resources are able to gain competitive advantage over firms that do not engage in these practices. firms that are able to use human resource practices to develop socially simplistic human and organizational resources are able to gain competitive advantage over firms that do not engage in these practices. firms that are able to use human resource practices to develop socially complex human and organizational resources gain little advantage over firms that do not engage in these practices. firms that are able to use human resource practices to develop socially complex human and organizational resources are at a competitive disadvantage when compared to firms that do not engage in these practices.

Using a cps-sample of 7,440 individuals, you estimate the following regression: = 20.91 - 2.61 x female where female is a binary variable that takes on the value of 1 for females and is 0 otherwise. the standard error on the coefficient on female is 0.25. the 95% confidence interval for the gender wage gap, or the amount that females earn less, is: a) [-3.10, -2.12] b) [18.30, 23.52] c) [-3.02, -2.20] d) [-1.96, -1.64]