How Does Dimensional Analysis Validate Units in Physics Problems?

[JakePearson]

given a distance s = 8.6m, time t = 2s, and a mass = 1.01kg, evaulate the expression to a physically appropriate accuracy?

m³ = 1.01³ = 3.03kg

is this correct

 

[fluidistic]

No.
I don't know if I understand what they ask. Do they ask for $$m^3$$, where m is the mass? If so, check out the units that you got. They are wrong. $$(1.01 kg)^3=$$?
I don't see the point of s=8.6 and t=2s though.