Hans lives in a house with a backyard that has an elevation of 0 feet above sea level. He wants to dig a hole in his backyard that will eventually turn into a swimming pool. He intends to dig at a steady rate for seven days and expects the hole’s depth, relative to sea level, will be -8.4 feet at the end. What will the hole’s depth be after the first day of digging?

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

Is a square always, sometimes, or never a parallelogram

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