I need help on kahn academy :,) it also asks what the appropriate domain is. a) 10 less than or equal to t less than or equal to 20
b) -20 less than or equal to t less than or equal to 10
c) -5 less than or equal to t less than or equal to 30
d) -10 less than or equal to t less than or equal to 20
*giving 20 points plz help!