exam Maths Puzzle Numerical Ability

patrick is 3 years older than amy. in 5 years the sum if thier ages will be 31. how old are they now?

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exam Other Question

Rewrite the equation as a function of x.
-3x+4y=11 Joe was charged $437 interest for 1 month on a $3800 credit card balance. What was the monthly interest rate?