Y’all I need the correct answer to this!! Please someone help

Fast! find the length of cu. the triangles are similar. show your work.

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

£100.80 divided by 14 equals 7.2 how would we put this as money