Two accounts earn simple interest. The balance y (in dollars) of Account A after xyears can be modeled by y=10x+500 Account B starts with $400 and earns 5% simple annual interest. a. Which account has a greater principal?

How much greater is the principal?

b. Which account has a greater annual interest rate?

How much greater is the annual interest rate?

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)