Matthew has 63 pages to read in 2-5 days. he wants to read the same whole number of pages each day and the greatest number of pages in the fewest days possible. what is the best number of days for matthew’s reading plan?

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