The velocity, , of an object in m/s is directly proportional to the time, , in seconds. This relationship can be expressed in the equation . Find the value of when m/s.
The length of a rectangle is 8 m and its width is 5 m. What is the perimeter of a similar rectangle with length 19 meters?
The cost of hiring a small car for 4 days is $170. What would the cost to hire the car for a week at the same rate be? Give your answer to two decimal places if necessary.