PreACT Practice Test 8

10 free PreACT practice questions in the real exam format, covering the official content areas, with an explanation for every answer.

PreACT Practice Test 8Tutor mode

Question 1 of 10

Math

A biologist starts a culture with 500 bacteria. The number of bacteria doubles every 3 hours. Which function gives the number of bacteria, $N (t)$ , after $t$ hours?