Question: On a 16 GB (gigabyte) capacity USB drive, 50% is already busy. Calculate the number of gigabytes still available.
Answer: We calculate 50% of 16 GB:. 50 / 100 * 16 GB = 0.5 * 16 GB = 8 GB. That leaves 16 GB - 8 GB = 8 GB available on this key. The answer is 8.

Question: Everett built a rectangular concrete patio that was four times as long as it was wide. If the perimeter of the patio was 100 feet, what was the length of the patio, in feet?
Answer: Let's make "x" be the width of the patio. Then the length of the patio would be 4 * x. And the perimeter of the patio would be the sum of all four sides, or x + (4 * x) + x + (4 * x) = 100 feet. This simplifies to 10x = 100 feet. And the width of the patio x = 10 feet. And the length of the patio is 4 * x = 4 * 10 = 40 feet. The answer is 40.

Question: When Jeffrey walks, for every three steps forward, he takes two steps backwards. Therefore, if the distance between the house and the mailbox is 66 steps, what is the total number of steps Jeffrey takes when he goes from the house to the mailbox?
Answer: For every 3 steps forward, he adds 2 more backwards so each 'step' gained costs 5 actual steps. 66 steps distance * 5 steps moved = 330 steps total. The answer is 330.

Question: It takes 15 minutes for Dante to go to Hidden Lake. From Hidden Lake, he has to walk back to the Park Office and it takes him 7 minutes. When he arrives there, he will have been gone from the Park Office 32 minutes altogether. If he had walked to the Lake Park restaurant from the Park office before taking the 15 minute walk to Hidden Lake, how long is the walk from Park Office to the Lake Park restaurant?
Answer:

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
If it takes 15 minutes for Dante to go to Hidden Lake and 7 minutes to walk back to the Park Office, he spends a total of 15 + 7 = 22 minutes on the trip. When Dante arrives at the Park Office, he will have been gone from the Park Office 32 minutes altogether, and since he passed by the Lake Park restaurant from The Park Office, his walk from Park Office to the Lake Park restaurant took 32 - 22 = 10 minutes. The answer is 10.