exam Maths Puzzle Numerical Ability

What values for x must be excluded in the following fractions.

(9x+2)/(x^2-9x+14)

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exam Other Question

Let ABC be a triangle. Let D be a point in the interior of <BAC. Let E be such that A-E-B.
1.Are B and E on the same side of AD? Why?
2.Are B and C on the same side of AD 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