Answer: 3.9 Hope this helps, please consider making me Brainliest.
Step-by-step explanation:
We can use our knowledge of perfect square (roots). The perfect square roots are 1, 4, 9, 16, 25, etc. The closest one that sqrt15 is near to is 16. The sqrt of 16 is 4, so if 15 + 1 = 16, the correct answer is 3.9. Hope this helps, please consider making me Brainliest.
