Question

PLS HELP ME ASAP WITH 1, 2, 5, 6, 11, and 12 PLS!!

Answer 1

1-

number 2) is correct





2- 3) is true



11) Jacob is not correct. because 6radical 5 is irrational



12) radical 20 is an irrational number but

so a+b is irrational



but
$\sqrt{225} = 15 \\ it \: is \: rational$

so b+c is rational



good luck