PLEASE HELP SOON!!

Q.1 What is the expression written in simplified radical form? 6 sqrt 27 + 11 sqrt 75


Q.2 53√5 x (-103√50)


Q.3 Which expressions simplify to a rational answer?

Select each correct answer.

1/4 + 1/2

sqrt3 + 4

sqrt4 + 7

2 x sqrt9

7 x sqrt6

4x2sqrt3

3. 7 x (1/3)

7 x sqrt81