Q: Rebecca bought 2 pies for the holiday weekend. Each pie was sliced into 8 slices. Rebecca ate 1 slice of each pie. Her family and friends ate 50% of the remaining pies over the weekend. On Sunday evening Rebecca and her husband each had another slice of pie. How many slices are remaining?
A: She bought 2 pies that had 8 slices each for a total of 2 * 8 = 16 slices. Rebecca ate 2 of the 16 slices leaving 16 - 2 = 14 slices. Her family and friends at 50% of the pie so they ate 14 * .50 = 7 slices. There were 14 slices and her family and friends ate 7 slices so that leaves 14 - 7 = 7 slices. Sunday night Rebecca and her husband each had a slice from the remaining slices so that leaves 7 - 2 = 5 slices. The answer is 5.

Q: Holden's current master bedroom is 309 sq ft and his master bath is 150 sq ft. If he wants to add a home office/personal gym divided space that is twice as large as his bedroom and bathroom, how much sq ft will this new room have?
A: His bedroom is 309 sq ft and his bathroom is 150 sq ft so these two rooms are 309 + 150 = 459 sq ft. He wants the new room to be twice as large as his bedroom / bathroom that is 459 sq so the new room is 2 * 459 = 918 sq ft. The answer is 918.

Q: It takes Derek 9 minutes to walk a mile if he doesn't have to walk with his brother. If he has to take his brother it takes 12 minutes to walk a mile. How many minutes longer would it take him to walk 20 miles if he had to take his brother?
A:
Alone it would take him 9 * 20 = 180 minutes. With his brother, it would take him 12 * 20 = 240 minutes. 240 - 180 = 60 more minutes. The answer is 60.