8. A certain ball bounces to E of the height it fell from. If this hall is initially dropped from 2? feet. approximate the total distance the ball travels. 9. Suppose you agreed to work for Php 10 a day for 30 days. You will earn Php 10 on the rst day, Php 20 the second day. Php 40 the third day, and so on. How many total amounts you have earned at the end of the 30-day period? 10. In 2008, the average monthly water bill of customers in a certain subdivision was estimated at th 896. In 2003 to 21315, the monthly bill decreased by 3.5% a year. 3. Write a rule for the average monthly water bill of the customers in the subdivision. b- Find the average monthly water bill in 21313. c. In what year was the average monthly water bill went down to approximately Php 5'49