VERY LIMITED TIME 10 MINUTES Samuel wants to buy a snake for $288 and the pet store owner wants him to make 6 equal payments of $49. What error did the pet store owner make?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z