Marissa is wanting to purchase pies for an upcoming party and she has $100 to spend. The cost of n amount of pies can be represented by the function p(n) = 20n-12, where n is the number of pies purchased. What are the reasonable domain and range of this situation?

On a piece of paper graph f(x)=5•(0.4)^x

Select the number of ways in which a line and a circle can intersect

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