The half-life of a radioactive substance is 15 years. A)Write an equation that can be used to determine the amount, s(t), of 200 grams of thissubstance that remains aftertyears. B)Determine algebraically, to thenearest year, how long it will take for110of this substanceto remain.

i dont know it

step-by-step explanation:

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!

1. 3. can also be expressed as (22/7)

2. -4.5

3. 3.6

happy to

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