exam Maths Puzzle Numerical Ability

The length of a rectangle is four times the width. The perimeter is 150 inches. Find the dimensions of the rectangle.

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exam Other Question

For the quadratic function Q(x)=x^2+5x-36, determine the y-intercept. For the quadratic equation x^2 + kx +7 =0, if 3+sqrt2 is a root, what is the value of k ?
I said 6 but my teacher marked it wrong. Please help me :)