exam Maths Puzzle Numerical Ability

10a2b5c-5 (a to the 2nd power b to the 5th power and c to the -5th power)
__________ (over or divided by)

2a2b-4c4 (a to the 2nd power b to the -4th power and c to the 4th power)

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exam Other Question
write each rational expression in lowest terms.state all the values for which the denominator of the original problem would be undefined.



y^2+2y-3/y^2-3y+2 WORD PROBLEM:

How much water should be added to 8 ML of 6% Saline solution to reduce the concentration to 4%?

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