You are trying to figure out how to spend your summer. You have two options for jobs. Babysitting (b) pays $12 an hour and cleaning houses (c) pays $15 an hour. You would like to make sure you make at least $420 per week. If you work 32 hours cleaning, how many hours do you need to work babysitting to get $420 for the week? If you work 10 hours babysitting, how many hours do you need to work (at least) cleaning houses to reach your goal?

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.)