exam Maths Puzzle Numerical Ability

Find the equation of the line that contains (2,-5) and is
1. perpendicular to the line y=5/2x-4
2. parallel to the line y=2/3x+2

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exam Other Question

I am trying to figure out (h) in the following problem. A=1/2h(B+b) where as A=80, B=12, and b=8. I have tried it and come up with h=80 but when i plug the number back in it does not balance out. Please help graph the solution

y<2/3x-2
Y>= -2x+1