At the beginning of an experiment, a scientist has 296 grams of radioactive goo. After 135 minutes, her sample has decayed to 9.25 grams.

What is the half-life of the goo in minutes? (Round to one decimal place)

The half-life of the goo is


Find a formula for
G
(
t
)
, the amount of goo remaining at time
t
.

G
(
t
)
=



How many grams of goo will remain after 38 minutes? (Round to one decimal place)

There will be
grams of goo after 38 minutes.