Which examples follow the basic rules for writing numbers? Instruction: Choose all options that best answer the question. Answer Choices I found about a dozen mistakes in the code The exact length is forty-two mm The state has five hundred and forty thousand people above the age of 20 The city has a population of 548,499 We found nine instances of fraud last year Forty percent of the city's roads need repairs I counted 847 units of stock There's a fifty percent chance it will work