A sample of a radioactive isotope had an initial mass of 650 mg in the year 1994 and decays exponentially over time. A measurement in the year 1996 found that the sample's mass had decayed to 570 mg. What would be the expected mass of the sample in the year 2005, to the nearest whole number?

An animal shelter has 21 puppies. if the puppies are 28% of the total dogs and cat population how many dogs and cats are in the animal shelter

Graph the equationy= x+3[tex]y = x + 3[/tex]

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y < 4x − 8 y is greater than or equal to negative 5 over 2 times x plus 5 part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points) part b: is the point (5, −8) included in the solution area for the system? justify your answer mathematically. (4 points)