It's Jenny's birthday! She invites her three best friends Janey, Jeannie, and Joany
to come to a party at her house, and when they arrive they all give each other
hugs. How many hugs is that altogether?

answer is x<

where does the z at is it on the x axes or on the y axes any way if it is on the y axes put it horizontally and if it is on the x axes put it vertically

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6