16. peter works part time for 3 hours every day and cindy works part time for 2 hours every day. a. if both of them get $4.50 an hour, write an inequality to compare peter’s and cindy’s earnings. b. what should cindy’s per-hour income be so that she earns at least $14 a day? write an inequality and an explanation of how to solve it. 17. admission prices to cinema i to see a movie are $9.50 for an adult and $6.50 for a child. the admission charge at cinema ii is $8.00 per person regardless of age. a. write an inequality showing that the prices are cheaper at cinema i than at cinema ii. b. if 6 adults and their children go together to see a movie, use the inequality to find how many children must attend for cinema i to be the better deal.