An outside design company received a delivery of 2,226 bricks. The company can build 69 fire pits if they use the same number of bricks in each one. Drag the numbers below to state the total number of bricks in each fire pit and the number of bricks that are left after the fire pits are built. Numbers may be used once or not at all.

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