21. what are the excluded values of the function? y= 5/6x-72


A. 0

B. 12

C. 72

D. 11


22. what are the excluded values of the function? y= 6/x^2-25


A. x=/ 5, -5

B. x=/ 5

C. x=/ -5

D. x=/ 1/6