Find all solutions of the equation x^2+3x+5=0 and express them in the form a+ bi

I'm terrible at math any here is appreciated.

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

Which two undefined geometric terms always describe figures with no beginning or end?