We have a question: John buys 1.5 ounces of silver and twice as much gold. The silver costs $20 per ounce. The gold is 50 times more expensive per ounce. How much does he spend on everything?
And an answer: 3030
So how you got the answer?
He buys the silver for 1.5 * $20 = $30. He bought 1.5 * 2 = 3 ounces of gold. The gold is worth %20 * 50 = $1000 per ounce. So he buys 3 * $1000 = $3000 on gold. So he spent $30 + $3000 = $3030 on everything.

We have a question: The basketball team sold 50 cupcakes for $2 each and 40 cookies for $0.5 each. Then the money from their sales was used to buy two basketballs that cost $40 each. The rest of the money was used to buy 20 bottles of energy drinks. How much does a bottle of energy drink cost?
And an answer: 2
So how you got the answer?
The basketball team earned 50 x $2 = $100 from selling cupcakes. They also earned 40 x 0.5 = $20 from selling cookies. So their total earnings was $100 + $20 = $120. The two basketballs cost $40 x 2 = $80. Thus, $120 - $80 = $40 was used to buy the 20 bottles of energy drinks. Therefore, each bottle of energy drink costs $40 / 20 = $2.

We have a question: Shara collects shells. She had 20 shells before she went on vacation. On vacation, she found 5 shells per day for 3 days. Then he found 6 shells on the fourth day. How many shells does she have now?
And an answer: 41
So how you got the 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.
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Shara collected 5 x 3 = 15 shells for 3 days. So she collected 15 + 6 = 21 shells rom her vacation. Thus, she now has a total of 20 + 21 = 41 shells.