Answer the following question.
On Tuesday, Mike had 45 books and Corey had twice as many books as Mike. On Wednesday, Mike gave 10 books to Lily, and Corey gave Lily 15 more than Mike gave. How many books did Lily get?
Step-by-step reasoning process: Corey gave Lily 10 + 15 = 25 books to Lily. Lily got 25 + 10 = 35 books.
The answer is 35.

Answer the following question.
Mason is mixing up some salad dressing. He takes a bowl that holds 150 ml and fills it 2/3rds with oil and 1/3rd with vinegar. The oil weighs 5 g/ml and the vinegar weighs 4 g/ml. How many grams does the salad dressing weigh?
Step-by-step reasoning process: First find how many ml of oil Mason adds by multiplying the volume of the bowl by the proportion filled with oil: 150 ml * 2 / 3 = 100 ml. Then repeat the process to find how many ml of vinegar he added: 150 ml * 1 / 3 = 50 ml. Now find the weight of the oil by multiplying the volume by the weight / volume ratio: 100 ml * 5 g / ml = 500 g. Do the same procedure with the weight and weight / volume ratio of the vinegar to find its weight: 50 ml * 4 g / ml = 200 g. Now add the weight of the oil and the vinegar to find the weight of the salad dressing: 500 g + 200 g = 700 g.
The answer is 700.

Answer the following question.
Every Sunday John is allowed to watch cartoons. However, for every 10 minutes of cartoons, he has to do 8 minutes of chores. If he watches cartoons for 2 hours, how many minutes of chores does he have to do?
Step-by-step reasoning process: He watched for 120 minutes because 2 x 60 = 120. This means 12 blocks of chores must be done because 120 / 10 = 12. He has to do 96 minutes of chores because 12 x 8 = 96.
The answer is 96.

Answer the following question.
Archie needs to lay sod in his backyard that measures 20 yards by 13 yards. He has a shed on it that measures 3 yards by 5 yards. How many square yards of sod will Archie need for his backyard?

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.
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Step-by-step reasoning process: 20 * 13 = 260 square yards. 3 * 5 = 15 square yards. 260 - 15 = 245 square yards. Archie needs 245 square yards of sod.
The answer is 245.