Maria plans to rent a boat. The boat rental costs $60 per hour,and she will also have to pay for a water safety course that costs $10. Maria wants to spend no more than $280 for the rental and the course. If the boat rental is available only for a whole numberof hours,what is the maximum number of hours for which Maria can rent the boat?

Jackie has two summer jobs. She works as a tutor, which pays $12 per hour,and she works as a lifeguard,which pays $9.50 per hour. She can work no more than 20 hours per week,but she wants to earn atleast $220 per week. Which of the following systems of inequalities represents this situation in terms of x and y,where x is the number of hours she tutors and y is the number of hours she works as a lifeguard?

The graph above displays the total cost C, in dollars, of renting a boat for h hours. What does the C-intercept represent in the graph?

The graph above displays the total cost C, in dollars, of renting a boat for h hours. Which of the following represents the relationship between h and C ?