exam Maths Puzzle Numerical Ability

For the following systems of linear equations:
a) Determine how many solutions exist
b) Use either elimination or substitution to find the solutions (if any)
c) Graph the two l

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1- A 12-foot ladder is leaning against a vertival wall, makes an angle X with the floor. If the top of the ladder is h-foot up the wall,express h in terms of X and th find the doman of the function:

y=2 / x-1 =

or y= 3x / 4 =