In band class, 4 students who play the clarinet compete for 15 chair, 2nd chair, 3rd chair, and 4th chair positions. How many different ways could the 4 students possibly end up in the positions?

Sara sells beaded necklaces she makes a profit of 4 dollars pn every neclace she sells which table represents the profit sara makes

How do you find principle and simple interest

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