After being exposed to an electromagnetic shrinking machine, Joe's height decreased by 120120120 cm over 1.51.51, point, 5 seconds. His height decreased by the same amount each second.

Question

How much did Joe's height change each second?

Answer 1

120120120 cm over 1.51.51, point, 5 seconds
??? what is all this gibberish? You mean
120 cm over 1.5 seconds ??
Why not just say so?

120cm / 1.5s = 80 cm/s

Answer 2

After being exposed to an electromagnetic shrinking machine, Joe's height decreased by 120120120 cm over 1.51.51, point, 5 seconds. His height decreased by the same amount each second.

Answer 3

Grandpa Ernie is shrinking! Over the past 444 years, his height decreased by a total of 2.4 \text{ cm}2.4 cm2, point, 4, start text, space, c, m, end text. It decreased by the same amount each year.