exam Maths Puzzle Numerical Ability

The Diaz family bought a new house 10 years ago for $80,000. The house is now worth $140,000. Assuming a steady rate of growth, what was the yearly rate of appreciation?

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Hi,
Can you help me with this math problem?

16.) Find the inverse of the function.

f(x)=log(x+9)

The answer should be f-1(x)=10^x-9 A covered urn contains red, white, black, and green marbles. A player received $2.00 if he draws a red marble, $1.50 if he draws a white marble, $3.00 if he draws a black marble. T