Step-by-step explanation:
5 ppl 5 walls 52 mins *2
10 ppl 10 walls 104 mins *2
20 ppl 20 walls 208 mins
as I know
B.
7 is rational. square root of 3 is not
even if you add them, there is no way the number is rational, as the decimals are still those of

3<span />
1 1/10
Step-by-step explanation: