exam Maths Puzzle Numerical Ability

The amount of time it takes to clean a restaurent is given by f(c)=10+2c where c is the number if customers they had. what is the range of this function?

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exam Other Question

1/z + z/9z+81 - 9/z^2+9z Its asking to write the next term in sequence and then write a rule for the nth term. 1,10,100,1000,.... What would the nth term be?