Could you possibly add to this post what your goal is? Are you supposed to graph this inequality?
19-x≥21 can be solved for x. Please do that now. If you have the skill and the interest, please graph your solution.
1. irrational: √48 = 6.92820323028
2. rational: √9 = 3
3. irrational: √39 = 6.2449979984
4. rational: √289 = 14
Answer: 2.4 years or 28.8 months
10 hours seems like the most reliable answer because it matches up the best