Jenny currently has dollars. She buys chocolate bars that cost cents each, and notebooks that cost 50 cents each. How much does she have left?
A candle has length cm. Once lit, the candle burns away at a constant rate of cm per minute. What is the length of the candle (in cm) minutes after it is lit?
James bought of candy for If Susan wants to buy of candy and pays an extra for the paper bag, how much should she pay?
The price for sending a package at the post office varies by the weight of the package according to the following table:
If Leonard sends a package which consists of one pen, three postcards, and two booklets, how much will he have to pay at the post office?
What is the perimeter of a rectangle whose width is and length is