A five-story office building has stairs that are each 7 inches tall. Carol, who works on the top floor of the building, says that the change in height for each stair should be represented by −7. Dave, who works on the first floor, thinks that the change in height should be represented by +7. Who do you think is correct? Support your answer with your reason

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.

i believe the answer would be:

d. violin, clarinet, french horn, and tuba

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

not copied too! hope this !

joke:

h o h o hope you have a merry christmas!