She gives away n books per week, so If 
, then she has (
) books left at any time.
this will be the explicit formula.
so we need to write in terms of recrusive.
to be recrusive each term must be expressed in terms of previous term.
in this represent ![a_{w[tex] +1](https://tex.z-dn.net/?f=%20a_%7Bw%5Btex%5D%20%2B1%20)
} [/tex] in terms of 
replace w+1 in place of w .
.
. this will be the recrusive expression for number of books she left.
Step-by-step explanation:
irrational ok????>>>>
R(t)=10t+20. This shows the first 20 pesos, and the additional 10 pesos for every hour. Hope this helps.
If balls were drawn from X to the other X, that how you find yo answer
