Answer:
Lindsey, who is delivering her speech in a large auditorium
Step-by-step explanation:
Jin, who is delivering her speech to a small group sitting around a table
Luke, who is delivering his speech in a typical classroom
Jordan, who is delivering his speech in a small meeting room
B. x4 + 4x3 + x2 + 4x
4y
4y is a term in itself 3 and x separate aren't and 4x + 7 is an equation not a term.