just convert 21% to a decimal yes
so u will convert to decimal
sorry bout that
It confused me to for a while, I am in a bit of a rush so I can't help you work it out but here are the videos my awesome highschool math teacher made for us (I go to school online) Expon. Decay - http://youtu.be/qeSAKaJyR8E Expon. Growth - http://youtu.be/8_F3YQK31fY YES I AGREE and look up LameeStorage on youtube to see his whole thing of math videos!!
I hope this helps you out i the future! ~Bree
I believe so, I haven't done these in a while, the video will definitely help you through it step by step!