What is the range of the function y= Vx+5 ?

What is always true when two whole numbers are subtracted?

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

What is the angle measure, or angle of depression, between this bird and the bird watcher?