exam Maths Puzzle Numerical Ability

1.) Factor a^2 + 4ab � 45b^2 on your paper. Which one of these is a factor of the trinomial?

2.) x^2 + 14x + 49

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exam Other Question

According to recycling records kept bythe Evironmental Protection Agency 38% of postconsumer newsprint was recycled in 1990, 45% in 1992, 47% in 1994, and 60% in 2001, Written in s I need to know how to create a set of linear equations which go through the point (1,2). I can get a ghetto answer by graphing the point and creating some lines, but I want to know how to do the problem right.
thanks