exam Maths Puzzle Numerical Ability

Walt made an extra $10,0000 last year from a part-time job. He invested part of the money at 8% and the rest at 7%. He made a total of $760 in interest. How much was invested at 7%?

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exam Other Question

solve by using the quadratic formula and write your answeres in radical form.
x^2=-5x-5 Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.

(-1, 3) and (4, -2)