*PLEASE HELP!!* Suppose that C and D are points on the number line. If CD = 11 and C lies at -5, where could D be located? If there is more than one location, separate them with commas

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

Solve for x and select the correct answer

Ratio of circumference to diameter example plz i need to now what it looks like.