For each part of the questions below, use the following situation: You have 15 coins valued at $3.00. Some of the coins are dimes and some are quarters.

What is the first equation that can be written for this situation?
15=3x

What is the second equation that can be written for this situation?

How many dimes do you have?

How many quarters do you have?

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.)