1.	Backtrack to find the input for the flowchart.
		A.	t = 3	B.	t = 1
		C.	t = 4	D.	t = 2
		Hint
	2.	Backtrack to find the input for the flowchart.
		A.	b = –5	B.	b = 3
		C.	b = 5	D.	b = –3
		Hint
	3.	Solve the equation by backtracking.
		A.	f = –24	B.	f = 16
		C.	f = –28	D.	f = –21
		Hint
	4.	Solve the equation by backtracking.
		A.	p = –10	B.	p = 12 and p = –12
		C.	p = 12	D.	p = –12
		Hint
	5.	Give the approximate solutions of this equation.(2z – 3) 2 – 31 = 33
		A.	z = 2.5 and z = –5.5
		B.	z = 2.5 and z = 5.5
		C.	z = –2.5 and z = –5.5
		D.	z = –2.5 and z = 5.5
		Hint