The expression 2(x-1)+3 can be used to determine how many people RSVP to an invitation after x number of days. Which of the following statements is/are false? Be sure to select all that apply.
A: After 7 days, 12 people RSVP.
B: The number of people who RSVP decreases by 1 each day.
C: After the first day, 3 people have RSVP’ed to the invitation.
D: The number of people who RSVP increases by 2 people each day.