Two arcs are congruent if they have the same measure and they belong to the same what or to what ?

What is the binomial expansion of (2x-3)^5

Does anyone know how to do geometryme with this problem

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