Please help me Question: Raisa’s office is on the sixth floor of a building. From her office, she took the elevator down eight floors to the parking garage. Which number represents the distance and direction of her trip from the parking garage to the ground floor of the building?

A.–8

B.–2

C.2

D.8

Carmen and matt are conducting different chemistry experiments in school. in both experiments, each student starts with an initial amount of water in a flask. they combine two chemicals which react to produce more water. carmen's experiment starts with 30 milliliters of water in a flask, and the water increases in volume by 8.5 milliliters per second. matt's experiment starts with 10 milliliters of water and increases in volume by 28% each second.