Mr smiths math class has 45 students. twenty-three of the students are men and the rest are women. what fraction best represents the number of women in the class?

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Fast! find the length of cu. the triangles are similar. show your work.

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