The sides of a rectangular floor are x m and (x + 7) m. The diagonal is (x + 8) m, calcu-
late, in metres
(a) the value of x
(b) the area of the floor.

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Show workings...please...
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Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

Which is the focus of a parabola with equation y2=4x