How to find area of these measurements

10"
12"
15"
8"

Identify a1 and r for the geometric sequence an= -256(-1/4) n-1

1jessica's home town is a mid-sized city experiencing a decline in population. the following graph models the estimated population if the decline continues at the same rate. select the most appropriate unit for the measure of time that the graph represents. a. years b. hours c. days d. weeks

How are sas and sss used to show that two triangles are congruent?