will mark brainleist answer 30 ponits plus the 5 at beginning Shelby drew a map of the Appalachian Trail. The Scale was 5 centimeters represents 400 kilometers. The map shows the Appalachian Trail to be 43.75 centimeters. What is the actual length of the. Appalachian Trail?

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.