exam Maths Puzzle Numerical Ability

How much pure water must be mixed with 3 pints of 70% developer to produce a misture that is 13% developer?

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exam Other Question

Identify all asymptotes and hole in the graph of each rational function:

b(x)=x+6/2x-1

your help would be greatly appreciated The principal is $2,200. at 12% compounded semi-annually for 2 years. Determine the amount at the end of 2 years.