Write the ratio 15 inches to 9 feet as a fraction

Jordan got 27 out of 90 correct on his test . what fraction of the marks did her get correct

Do you mind if you guys me with this question i’m on number 8

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