How many square feet of carpeting are needed to carpet a 12-foot by 12-foot room

Can someone me do math because i am having a breakdown rn because i don’t get it

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

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