A pie shop charges $3 per slice of custard pie. They cut each whole pie into 10 slices. If they make 6 whole custard pies, how much money will the pie shop earn?
Let's think: The pie shop has 6 x 10 = 60 slices of custard pie. Therefore, the pie shop will earn $3 x 60 = $180 for the 60 slices of custard pie.. The answer is: 180.

Whitney’s mom gave her two $20 bills to spend at the school book fair. Whitney has decided to buy 2 posters, 3 notebooks, and 2 bookmarks. Each poster costs $5, each notebook costs $4, and each bookmark costs $2. How much money, in dollars, will Whitney have left over after the purchase?
Let's think: Whitney is buying 2 posters for $5 each, so the posters will cost 2 * $5 = $10 total cost for posters. Whitney is buying 3 notebooks for $4 each, so the notebooks will cost 3 * $4 = $12 total cost for notebooks. Whitney is buying 2 notebooks for $2, so the bookmarks 2 * $2 = $4 total cost for bookmarks. Since Whitney is paying $10 for posters, $12 for notebooks, and $4 for bookmarks, her total purchase will cost $10 + $12 + $4 = $26 total purchase cost. Whitney’s mom gave her 2 $20 bills, so she will be paying with 2 * $20 = $40 total payment. Since Whitney is paying with $40 and her purchase cost will be $26, she will have $40 - $26 = $14 left over after the purchase.. The answer is: 14.

If seven more rabbits are added to the thirteen in the cage, the number of rabbits in the cage will be 1/3 the number of rabbits Jasper saw in the park today. How many rabbits did Jasper see in the park today?
Let's think: If seven more rabbits are added to the thirteen in the cage, the total number becomes 7 + 13 = 20. Triple the number of rabbits in the cage is 3 * 20 = 60, the same as the number of rabbits that Jasper saw at the park today.. The answer is: 60.

A YouTube video is 100 hours long. Lila decides to watch it at two times the average speed. Roger, her friend, also watch the same video at the average speed. If they both watched six of the same videos, what's the total number of hours they watched?
Let's think:
When Lila watches the video at twice the normal speed, the video takes 100 / 2 = 50 hours. When she watches six such videos, the total number of video hours becomes 50 * 6 = 300 hours. Roger, her friend, watches 6 videos at the normal speed, which is 6 * 100 = 600 video hours. The total number of hours watched by the two is 600 + 300 = 900 hours.. The answer is: 900.