Match each concept (roman numbers) with its definition (capital letters). 1. Commodity II. Commodity money III. Commodity-backed money IV. Fiat money A. A bill that is trusted because the government certifies its authenticity B. A silver and platinum necklace C. Coins made of gold D. A bill that is trusted because the government emits those bills according to the amount of gold reserves they have

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There is a big sale at the Try-n-Save store in Springfield.  Thor purchases a new pair of sweat pants on sale for $75, marked down from $98.  What percent discount is this?  Round your answer to the nearest whole.

You have two options for how to spend the afternoon. You can either go see a movie with your roommate or work as a tutor for the Math Department. From experience, you know that going to see a movie gives you $20 worth of enjoyment, and with your student discount, a movie ticket only costs $12. If you spend the afternoon working as a math tutor, you will get paid $45. On a typical day, you wouldn't be willing to spend the afternoon working as a math tutor for less than $35. What is your opportunity cost of seeing a movie this afternoon? Select one: O a. $57 O b. $12 ○ c. $22 ○ d. $8