Help someone Please!!

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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