exam Maths Puzzle Numerical Ability

3x+1/ 2x-6 - x+2 / x-3

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exam Other Question

Not sure if this goes here but I really need help. Thanks!

A certain type of bacteria grows according to the function
f(t)= 5000e^.4055t, where t is measured in hours. What will the population be in 9 hours?

Thanks for any assistance.
Application problem with a linear function: Problem type 2

Frank is driving to Milwaukee. Suppose that the distance to his destination (in miles) is a linear function of his tot