book Maths Puzzle Numerical Ability

Please help me solve this : A square has a side of length 9x-2 inches. Each side is shortened by 3 inches. What is the perimeter of the new smaller square?

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Please help!

A ranger in fire tower A spots a fire at a direction of 295 degrees. A ranger in fire tower B, located 45 miles at a direction of 45 degrees from tower A, spots the Could some one help me understand this problem?

The instructions are to solve the inequality. Find the vertex and intercepts, then graph it:
y = -3x^2 + 6x

Thanks very much