A certain radioactive substance decays by 2.4% each year. Find the half-life

b

step-by-step explanation:

y do u put "subscirbe to ence" on a app for ppl who need with their work?

after simplifying it i got: -36.25 as my answer. hope that !

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.