(PLEASE ANSWEER) This staircase sequence shows a growing pattern. Predict the total number of cubes you will need to build the 50th staircase. Show your thinking.

ian gonna lie that is way to much

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