At the beginning of an experiment, a scientist has 192 grams of radioactive goo. After 135 minutes, her sample has decayed to 3 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 23 minutes? (Round to one decimal places) There will be grams of goo after 23 minutes.