The length (L) of a rectangle of fixed area varies inversely as the width (W). If the length of the rectangle is 8 ft when the width is 5 ft, find the length of the rectangle when the width is 4 ft.
A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name drawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there
You park your car in a pay lot. Because you have a coupon, you get the first 4 hrs. and 45 mins. free. You pay for an extra 4.5 hrs. How long can you park?