BEST ANSWER WILL BE MARKED BRAINLIEST Taylor has 27 books in her book collection. She keeps 1 book beside her bed and keeps the remaining books in a bookcase. She can fit up to 8 books on a shelf. What is the least number of shelves Taylor needs for all her books?

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