Answer:
20+10
Explanation:
Quadrupled means times 4. If the population went up by 4 every year for 5 years, that would be 20. And 20 added to your original number (10) is 30.
10,240
Each year, the population is multiplied by 4, so after 5 years, the population is 4^5 times the original number:
10 × 4^5 = 10×1024 = 10,240
There will be 10,240 rabbits after 5 years.
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