Please help I chose the last one am I right?

Which graph represents the parent function of y=(x+2)(x-2)

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.