Q: Roberta started off with 8 vinyl records. Her friends gave her 12 records for her birthday and she bought 30 more at a garage sale. It takes her 2 days to listen to 1 record. How many days will it take her to listen to her record collection?
A: She had 8 records, received 12 and bought 30 for a total of 8 + 12 + 30 = 50 records. It takes 2 days to listen to 1 record and she has 50 records it will take her 2 * 50 = 100 days. The answer is 100.

Q: There are 3 rows of people relaxing at the beach. The first row is made up of 24 people until 3 people get up to wade in the water. 5 people from the second row, which originally held 20 people, go to join them. The third row is made up of 18 people. How many people are left relaxing on the beach?
A: In the first row, there are now 24 – 3 = 21 people. In the second row, there are now 20 – 5 = 15 people. So in total there are 21 in the first row + 15 in the second row + 18 in the third row = 54 people. The answer is 54.

Q: Pauline is buying school supplies. The total amount of all the items she wants to buy add up to $150 before sales tax. Sales tax is 8% of the total amount purchased. How much will Pauline spend on all the items, including sales tax?
A:
Sales tax is 8 / 100 x $150 = $12. Therefore, Pauline wil spend $150 + $12 = $162, including sales tax. The answer is 162.