[Question]: Ms. Jones got thank you cards from 30% of her class. 1/3 of these contained a gift card for $10. If she got $50 in gift cards, how many students were in her class?
[Answer]: She got 5 gift cards because 50 / 10 = 5. She got 15 thank you cards because 5 / (1 / 3) = 15. She has 50 students because 15 / .3 = 50.
So the answer is 50.

[Question]: Drew is reseeding his lawn with grass seed. One bag of grass seed covers 250 square feet of lawn. His lawn is 22 feet from the house to the curb and 36 feet from side to side. He bought four bags of seed. How many extra square feet could the leftover grass seed cover after Drew reseeds his lawn?
[Answer]: Drew's lawn is 22 * 36 = 792 square feet. He bought enough grass seed to cover 250 * 4 = 1000 square feet. Thus, the leftover grass seed can cover 1000 - 792 = 208 square feet.
So the answer is 208.

[Question]: Nancy is crafting clay pots to sell. She creates 12 clay pots on Monday, twice as many on Tuesday, a few more on Wednesday, then ends the week with 50 clay pots. How many did she create on Wednesday?
[Answer]:
On Tuesday, Nancy creates 12 clay pots * 2 = 24 clay plots. So she created a combined total of 12 + 24 = 36 clay pots on Monday and Tuesday. Subtracting this from the number of clay pots she ended the week with means she must have created 50 36 = 14 clay pots on Wednesday.
So the answer is 14.