[Question]Jessica is having a sweet tooth and bought 10 chocolate bars, 10 packs of gummy bears, and 20 bags of chocolate chips. Her total rang up to $150. If the cost of a pack of gummy bears is $2 and a bag of chocolate chips costs $5, how much does 1 chocolate bar cost?
[Answer]The gummy bears cost 10 * 2 = $20. The chocolate chips cost 5 * 20 = $100. The total cost for these two is 100 + 20 = $120. The chocolate bars in total cost 150 - 120 = $30. A single chocolate bar costs 30 / 10 = $3. The answer is 3.

[Question]Mr. Wells has a garden of flowers with 50 rows. If each row has 400 flowers and Mr. Wells cuts 60% of the flowers, how many flowers are remaining in the garden?
[Answer]If there are 50 rows of flowers with 400 flowers per row, there are 50 * 400 = 20000 flowers in the garden,. Mr. Wells cuts flowers from 60% of the flowers, which is 60 / 100 * 20000 = 12000 flowers. The total number of flowers remaining in the garden is 20000 - 12000 = 8000. The answer is 8000.

[Question]A farmer owns a hog that recently gave birth to 6 piglets. If the farmer raises the piglets until they are fully grown, he can sell the fully grown pig for $300. Each piglet must grow for at least 12 months before it is large enough to be sold. It costs the farmer $10 per month to feed each animal until it is sold. If the farmer sells 3 pigs after 12 months, and the remaining 3 pigs after 16 months, how much profit did he earn in total (after deducting the cost of food)?
[Answer]The 3 pigs that are sold after 12 months will cost the farmer 12 * 10 * 3 = $360 in food costs. The 3 pigs that are sold after 16 months will cost the farmer 16 * 10 * 3 = $480 in food costs. Thus, the total food cost to raise the 6 piglets was 360 + 480 = $840. Next, selling the 6 fully grown pigs will earn the farmer 6 * 300 = $1800 in revenue. Therefore, the earn the farmer 1800 - 840 = $960 in profit from these sales. The answer is 960.

[Question]From Monday to Friday, Elle practices piano for 30 minutes. On Saturday, she practices piano three times as much as on a weekday. There is no practice on Sunday. How many hours does Elle spend practicing piano each week?
[Answer]
From Monday to Friday, Elle practices 0.50 x 5 = 2.5 hours. On Saturday, she practices 0.50 x 3 = 1.5 hours. Each week, Elle practices piano for 2.5 + 1.5 = 4 hours. The answer is 4.