Maria is ordering copy paper for her office. the office is low on white paper and on blue paper. she will pay $3.50 per realm of white paper and $3.75 per realm of blue paper. if the purchase order is for $36.00 and she ordered 10 realms of paper, how many realms of white paper will she receive

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