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A certain bacteria population is known to double every 90 minutes. Suppose that there are initially 150 bacteria.

Write an expression that models the size of the population after ` t ` hours.

Write an expression that models the size of the population after ` t ` hours.

Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c

Be sure your variables match those in the question