What is 11/8-3/4 step by step

The heaviest 16% of all men in weight weigh more than how many pounds ?

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

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