What is the exact value of the expressions sqrt 180 − sqrt 125 + sqrt 5? simplify if possible.

a. 2 sqrt 2
b. 12 sqrt 2
c. 2 sqrt 5
d. 12 sqrt 5

sqrt 180 − sqrt 125 + sqrt 5 = (6sqrt5) - (5sqrt5)+(sqrt 5)

Combine like terms 2sqrt5

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above