exam Maths Puzzle Numerical Ability

Suppose you see the two summer jobs advertised at the right. Let x= the amount of sales and y= money earned in a week.

cellular phone sales: y=150+0.2x
stereo sales: y=200+0

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exam Other Question

If x^9=127 then find x^4 accurate to two digits after the decimal point. Floor plans for a building have the four corners of a room located at the points (2,3),(11,6),(-3,18),and (8,11). Determine whether the side through the points (2,3)and(11,6) is pa