Which of the following sets are discrete? check all that apply
a. {4, 7, 10, 12, 13}
b. (1, 8)
c. {2, 4, 6, 8, }
d. [25, 60)
e. {-9, 9}

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4