La mitad menos ocho estudiantes de cierto salón en una escuela tienen auto propio. Si ese número de autos son de 258 ¿Cuántos estudiantes hay en el salón?

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