book Maths Puzzle Numerical Ability

I need help quickly on these I have no idea how to work these. Thank you for your help.


Write an equation on the line that has slope = -(2/3) and passes through (5, -4)

Wr

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book Other Question

solving of this quadrtic inequality make not sense to me Please help

w -6
_______ < 0
w
Please help me solve this: 7r-(2r+8)=32