Kate takes the elevator from the ground floor (which is labeled 0) to a floor three levels below the ground floor. Which number represents the floor where she gets off the elevator? A.
+3
B.
+2
C.

D.
-3

D: -3

Step-by-step explanation:

I only chose this one because C. doesn't have a number and because it said she went down three levels. So if this isn't right I don't know what is.

55? i think maybe

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.