The half life of a radioactive substance is 20 years. write an equation that can be used to determine the amount s(t) of 200 grams of this substance that remained after t years. determine algebraically to the nearest year, how long it will take for 1/10 of this substance to remain PLSSS HELP ME

360/29

step-by-step explanation:

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without