The rationals being closed under subtraction means that if we start with two rational numbers and subtract them, we get another rational number. Choice c subtracts two rational numbers but gets the wrong answer, so isn't support for anything. Choice b is rational too because the square root of 4 is 2.
Answer: b
Answer:
7.25
Step-by-step explanation:
200m/s^6 = m/3^6
s^6 = 200*3^6
s = 3*200^(1/6) = 7.25 mi/hr
Hope I helped!
Answer:
I think it’s C
I hope this helps you!!!!!
