book Maths Puzzle Numerical Ability

it is possible for two lines to intersect in such a way that three of the angles formed have measures of 20, 70, 20. true or false

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book Other Question

solve equation by factoring: (y-3)(y+2)= 0 All that I have to do is factor this but I think that it is prime. Can someone please tell me if I am right? Thank you.
15x^2+16x+4