The regional manager of a chain of department stores created the following stem-and-leaf plot showing the number of pairs of glasses at each of the stores:
0
1
2
9
3 6 6 8
2 3 5 6 9
0
1 2 3 3 5 7
1
3
4
Key: 4|1= 41 pairs of glasses
How many department stores have exactly 37 pairs of glasses?
department stores

i'm sorry i don't know

step-by-step explanation:

answer: i wpould go with c

step-by-step explanation:

-9

step-by-step explanation:

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)