exam Maths Puzzle Numerical Ability

Sketch the graph of y=f(-x)

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exam Other Question

Solve the pairs of equations using the substitution method:
problem#6. x=1-y
y=x-9

problem#7. 2x-y=0
3x-2y=-3 Geometry figures are often represented by the letters that idendify each vetex. Determine the number of ways that each figure can be named with the following letters: A,B,C,D,E,and