What is the recursive formula for this arithmetic sequence 6, -24, 96, -384 a. a1=6 an=an-1*(-4) b. a1=6 an=an-1*4 c. a1=4 an=an-1*(-6) d. a1=4 an=an-1*6

David estimated he had about 20 fish in his pond. a year later, there were about 1.5 times as many fish. the year after that, the number of fish increased by a factor of 1.5 again. the number of fish is modeled by f(x)=20(1.5)^x. create a question you could ask that could be answered only by graphing or using a logarithm.

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)

Solve this problem! extra ! 3025/5.5 = a/90.75