Rosa walks 4.58 miles in one day. shelly walks the number of miles that rosa walks in one day. how many miles does shelly walk in one day?
a. 2.29
b. 4.58
c. 5.08
d. 9.16

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.