Atv has a listed price of $827.95 before tax. if the sales tax rate is 6.25% , find the total cost of the tv with sales tax included. round your answer to the nearest cent, as necessary.

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