exam Maths Puzzle Numerical Ability

Ms K is 6 years more than 3 times as old as her daughter. 8 years ago she was 2 years less than 9 times as old as her daughter was then. What are thier ages?

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exam Other Question
Write a formula to represent the function value(nickels,dimes,quarters) SOLVE.

5/8x + 1/16x = 3/16 + x
(these are all fractions)

HELP, how do I do this? Do i have to change the 5/8 to 10/16x?