What is the exterior angle measure of a regular 18-gon

How can you decide witch operations to use to slice a two step equation

The amount of energy it takes to lift a box might be a function of which of the following

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483