Answer the following question.
Miriam is trying to exercise more and figures if she counts her exercises it will be encouraging to see her numbers go up. On Monday she does 5 push-ups. On Tuesday she does 7 push-ups. On Wednesday she does twice as many push-ups as the day before. On Thursday she does half the number of total pushups she already did that week. Finally, on Friday she does as many pushups as the total number she did over the previous four days. How many pushups does Miriam do on Friday?
Step-by-step reasoning process: On Monday Miriam does 5 push - ups + 7 push - ups on Tuesday = 12 push - ups on both days. On Wednesday she does twice as many push - ups as she did on Tuesday, 7 x 2 = 14 push - ups on Wednesday. Over the first 3 days, she did a total of 14 + 12 = 26 pushups. On Thursday Miriam did 1 / 2 the same number of total pushups she had already done that week, so she did 1 / 2 x 26 = 13 pushups on Thursday. On Friday she does as many push - ups as the total of what she had done over the previous four days, so she did 5 + 7 + 14 + 13 = 39 push - ups on Friday.
The answer is 39.

Answer the following question.
The pizzeria sells small pizzas for $2 and large pizzas for $8. They sold $40 in pizzas. If they sold 8 small pizzas, how many large pizzas did they sell?
Step-by-step reasoning process: They earned 8 * 2 = $16 from the small pizzas. The large pizzas earned 40 - 16 = $24. They sold 24 / 8 = 3 large Pizzas.
The answer is 3.

Answer the following question.
A machine fills 150 cans of paint every 8 minutes. How many minutes does it take this machine to fill 675 cans?
Step-by-step reasoning process: To know how many groups of 150 cans there are in 675 cans, we calculate 675 ÷ 150 = 4.5. For each of these groups, 8 minutes are needed, so it takes 8 × 4.5 = 36 minutes.
The answer is 36.

Answer the following question.
Carl has a jar full of marbles. He takes out 12 marbles to play a game with, but he accidentally drops them and 1/2 the marbles get lost. So Carl takes out 10 more marbles. While he is playing his game his mother comes home with another bag of marbles for him, which has 25 marbles in it. If Carl can't find his lost marbles, then how many marbles is he going to put in the jar after he plays his game, from both his original marbles and the new ones?

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: Carl starts with 12 marbles to play with but loses 1 / 2, 12 / 2 = 6 marbles Carl didn't lose. Carl takes out 10 more marbles, 6 + 10 = 16 marbles. Then Carl's mother brings him 25 new marbles to add to the 16 he has out of his jar, 25 + 16 = 41 marbles that Carl is going to put in his jar after he plays his marbles game.
The answer is 41.