At the beginning of an experiment, a scientist has 168 grams of radioactive goo. After 210 minutes, her sample has decayed to 5.25 grams.

What is the half-life of the goo in minutes?  

Find a formula for G(t)\displaystyle {G}{\left({t}\right)}, the amount of goo remaining at time t\displaystyle {t}. G(t)=\displaystyle {G}{\left({t}\right)}=  

How many grams of goo will remain after 26 minutes?