7.what is the square root of 45 to the nearest tenth?
A.6.5 B.6.6 C.6.7 D.6.8

8.which of the real numbers below has an irrational principal root?
A.³√95 B.√25 C.⁴√81 D.√225


9.which of the real numbers below has an the principal root of 8?
A.³√16 B.³√64 C.√16 D.√64

10.how would you describe the cube root og 49?
A.undefined B.retional C.syntax error D.irrational

11.if the principal root of 25 is rational,then how would you describe the principal root of 125?
A.imaginary B.rational C.undefined D.irrational​