Answer this question:Tim buys 3 dozen eggs. Eggs cost $.50 each. How much did he pay for eggs?
He bought 3 * 12 = 36 eggs. So they cost 36 * .5 = $18.
The answer is 18.

Answer this question:Ludwig works 7 days a week and he usually works half of the day during Friday, Saturday, and Sunday. If his daily salary is $10, how much does he earn every week?
Ludwig earns a total of $10 x 4 = $40 from Monday to Thursday. He earns $10 / 2 = $5 per day on Friday, Saturday, and Sunday. So, his total salary for Friday, Saturday, Sunday is $5 x 3 = $15. Therefore, his total weekly salary is $40 + $15 = $55.
The answer is 55.

Answer this question:James decides to replace his car. He sold his $20,000 car for 80% of its value and then was able to haggle to buy a $30,000 sticker price car for 90% of its value. How much was he out of pocket?
He sold his car for 20000 * .8 = $16,000. He bought the new car for 30,000 * .9 = $27,000. That means he was out of pocket 27,000 - 16,000 = $11,000.
The answer is 11000.

Answer this question:John skateboarded for 10 miles and then walked another 4 miles to the park. He then skated all the way back home. How many miles has John skateboarded in total?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
John traveled 10 + 4 = 14 miles to the park. His round trip would take 14 x 2 = 28 miles. If you subtract the 4 miles he walked then John traveled 28 - 4 = 24 miles.
The answer is 24.