1.	Find the sum of the infinite series if it exists.
		A.	8	B.	4
		C.	The sum does not exist.	D.	1
		Hint
	2.
		A.	28	B.
		C.	The sum does not exist.	D.
		Hint
	3.	The length of the arc of the swing of a pendulum is 120 mm. If the length of the arc of each succeeding swing is decreased by 10%, find the total distance the pendulum travels before it stops.
		A.	800 mm	B.	1000 mm
		C.	90 mm	D.	1200 mm
		Hint
	4.	In order to write as a fraction, by what factor should we multiply S in order to obtain a second equation?
		A.	1000	B.	10
		C.		D.	100
		Hint
	5.	Which of the following series is not infinite?
		A.		B.
		C.		D.
		Hint