Find the measure of the exterior angle.

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

Geometry triangles(ignore the handwriting)

If twice a number is at least three less than four times the number, which of the following are true? let n represent the number.