I'll mark u the brainliest this is due in 10 minutes!

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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