A table shows the proportional relationship between the number of hours worked and the amount of money earned. If 5 hours of work earn $50, what is the constant of proportionality (unit rate)?

A graph shows a straight line passing through the origin and through the point (4, 12). What is the constant of proportionality (unit rate)?

A worker earns $48 for 6 hours of work. What is the constant of proportionality (unit rate) in terms of dollars per hour?

A recipe requires 4 cups of flour to make 8 cookies. What is the constant of proportionality (unit rate) in terms of cups of flour per cookie?

A factory produces 240 gadgets in 6 hours. What is the constant of proportionality (unit rate) in terms of gadgets per hour?

In a diagram showing the relationship between the number of students and the number of books, if 10 students have 20 books, what is the constant of proportionality (unit rate) in terms of books per student?

A cyclist covers a distance of 150 miles in 5 hours. What is the constant of proportionality (unit rate) in terms of miles per hour?

A person walks 15 kilometers in 3 hours. What is the constant of proportionality (unit rate) in terms of kilometers per hour?

If a machine fills 120 bottles in 4 minutes, what is the constant of proportionality (unit rate) in terms of bottles per minute?