[Question]: John drinks 1.5 gallons of water a day. How many quarts does he drink a week?
[Answer]: He drinks 1.5 * 4 = 6 quarts a day. That means he drinks 6 * 7 = 42 quarts a week.
So the answer is 42.

[Question]: Joyce moved to the countryside because she needed more farmland to grow her vegetables. Her new property is 10 times larger than her previous property, but her new land has a 1-acre pond on it where she cannot grow vegetables. If her previous property was 2 acres, how many acres of land does she now own that are suitable for growing vegetables?
[Answer]: Joyce's new land is 10 times larger than her old 2 - acre property, for a total of 2 * 10 = 20 acres of land. One acre is not suitable for farming, leaving her with 20 - 1 = 19 acres of land suitable for farming.
So the answer is 19.

[Question]: Troy's home is 75 meters away from school while Emily's home is 98 meters away from school. Troy and Emily walk to school and back home every day. How much farther does Emily walk to school and back in five days?
[Answer]:
Troy walks to school and back home for a total of 75 x 2 = 150 meters every day. Emily walks to school and back home for a total of 98 x 2 = 196 meters every day. So Emily walks 196 - 150 = 46 meters farther than Troy every day. In five days, Emily walks 46 x 5 = 230 meters farther.
So the answer is 230.