Simplify the expression by distributing and combining like terms.

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Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

How do you solve a question like this?