What is the value of n in this proportion? 8/12 = 10/n

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

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 graph represents the equation y =4x