The phrases exponential growth and exponential decay appear quite often in media reports these days, referring to environmental, technological, and
scientific changes.
In your own words, how would you describe exponential growth and exponential
decay to someone unfamiliar with these phrases

nope.   happens to me as well.

-aparri

i believe it is 0.1m because the measurement of 30.4m limits how precise you can be

you can only be as precise as the least precise measurement

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."