Veronica picks up 21 pine cones per minute. Genevieve picks up 10 pine cones per minute. The bucket they are filling had 37 pine cones in it when they started. Write an expression to
represent the total number of pine cones in the bucket where V represents the number of minutes
Veronica picked up pine cones and G represents the number of minutes Genevieve picked up
pine cones.

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