While in chicago, brent and margaret plan on visiting the willis

tower, built as and still commonly referred to as the sears

tower.

in the lobby, there is a model of the sears tower that has an

observation deck with a height of 4 meters. if the actual height

of the observation deck is 412 meters, what is the scale of the

model?

The table below shows the approximate masses of a dust particle and a grain of pollen. dust particle 0.000000778 g grain of pollen 0.00000000155 g the mass of a dust particle can be estimated and written in the form a × 10^b, where a = 8 and b = the mass of a grain of pollen can be estimated and written in the form a × 10^b, where a = 2 and b = based on the estimates, the mass of a dust particle is approximately blank times larger than the mass of a grain of pollen.