[Question]: In a shop, there is a sale of clothes. Every shirt costs $5, every hat $4, and a pair of jeans $10. How much do you need to pay for three shirts, two pairs of jeans, and four hats?
[Answer]: Three shirts cost 3 * 5 = $15. Two pairs of jeans would cost 2 * 10 = $20. Four hats would in total cost 4 * 4 = $16. So for three shirts, two pairs of jeans, and four hats, you would need to pay 15 + 20 + 16 = $51.
So the answer is 51.

[Question]: The total number of employees in a company is 450, and each employee earns $2000 per month. If the company laid off 1/3 of its employees due to tough economic times, calculate the total amount of money the company paid to the remaining employees.
[Answer]: 1 / 3 of the employees were laid off, that is 1 / 3 * 450 = 150 employees. There were 450 - 150 = 300 employees remaining. If the company was paying each person $2000, the total amount of money paid to the remaining employees is 300 * 2000 = $600000.
So the answer is 600000.

[Question]: Andrew holds a bake sale to fundraise for charity. The bake sale earns a total of $400. Andrew keeps $100 to cover the cost of ingredients. He donates half of the remaining total to the local homeless shelter, and the other half to the local food bank. Andrew also decides to donate $10 from his own piggy bank to the local homeless shelter. How much money in total does Andrew donate to the homeless shelter?
[Answer]:
After paying off the cost of ingredients, Andrew has $400 - $100 = $300. Since half of the money goes to the homeless shelter, the shelter receives $300 / 2 = $150. After contributing some of his own money, Andrew donates $150 + $10 = $160 to the shelter.
So the answer is 160.