exam Maths Puzzle Numerical Ability

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7x^2 + x - 17 over 2x^2 - 5x +3 minus 3x -4 over 2x - 3 euals 2x+1 over
x - 1 for x.

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exam Other Question

Cesium 13 is a radioactive element with a half life of 30 years. Predict how much of a 60mg sample of cesium137 would remain after 210 years. I am trying to figure out the formula to solve this Thanks To find an equation of a line given the slope and one point on the line

m = 0; (-5, 3)
4