Question 15 {1 point} The first term of a geometric series is 6. The sum of the first two terms of the series is 36, and the sum of the first three terms of the series is 186. What is the common ratio {r} for this series? Question 16 (1 point} A rubber ball is dropped onto a concrete driveway from a garage roof 10 feet above the ground. With each bounce, the ball loses 10% of its previous vertical height. Calculate, to the nearest hundredth of a foot, the vertical height to which the ball rebounds after the 6th bounce. 15/ feet Question 17 (1 point) Identify each of the following geometric series as being convergent or divergent. 10 - 20/3 + 40/9 - ... 1/3 - 2/3 + 4/4 - ... 1. Convergent -5 - 5/2 - 25/4 - ... 2. Divergent 1/4 + 3/4 + 9/4 + ... Question 18 (1 point) Find the sum of the infinite series 2 - 1 + 1/2 - ... . Round your answer to the nearest tenth. Question 19 (1 point) The sum of an infinite series is 12/5 and the first term is 3. Determine the common ratio. Round your answer to the nearest hundredth. A/Question 3 {1 point} A student is offered a job and has two plans to choose from for how they will get paid. Plan A: The student will earn $6 on day one, $11 on day two, $16 on day three, and so on for 20 total working days. Plan B: The student will earn $1000 for 20 total working days. What is the sum of money earned for Plan A? 15; Which plan is better? {A or B} 15/ How much more money will the student make with the better plan