1.	Backtrack to find the input for the flowchart.
		A.	t = 4	B.	t = 3
		C.	t = 1	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.	y =	B.	y = 1
		C.	y = 3	D.	y =
		Hint
	4.	Solve the equation by backtracking.
		A.	f = 16	B.	f = –28
		C.	f = –21	D.	f = –24
		Hint
	5.	Give the approximate solution of this equation.5 + (2c – 3) 2 = 5
		A.	c = –1.5 and c = –1.5	B.	c = 1.5 and c = –1.5
		C.	c = –1.5	D.	c = 1.5
		Hint