Under the standard rules for counting significant digits, which of the following numbers has the most significant digits? a. $5.0 \times 10^{-1}$ b. $5 \times 10^3$ c. $500,000$

Which of the following is significant about the Law of Nations?

A. It declared people innocent until proven guilty.

B. It gave citizens the right to a trial by jury.

C. It promoted the rule of law.

D. It outlined penalties for crimes.

Carry out the indicated operation and give your answer with the specified number of significant digits. $23 \times 12.4 ; 3$ significant digits

The $\$ 5.6$ trillion surplus that government economists had projected in $2001$ never materialized because the people who made this projection a. didn't understand how the government budget works. b. based it on assumptions about the future economy that turned out to be untrue. c. made basic errors in their calculations.

At a particular moment, the U.S. National Debt Clock says that the federal debt is $\$ 20,958,652,995,023.45$ This reading is a. very precise but not necessarily accurate. b. very accurate but not necessarily precise. c. both very precise and very accurate.

Assuming that your salary has been rising at a greater rate than the CPI. In principle, this should mean that a. your standard of living has improved. b. your standard of living has declined. c. you must now be working more hours.

What is a Venn diagram? How do we show that one set is a subset of another in a Venn diagram? How do we show disjoint sets? How do we show overlapping sets?

Emily scored $50 \%$ higher on the SAT than Joshua did. This means that a. Joshua's score was $50 \%$ lower than Emily's. b. Joshua's score was half of Emily's. c. Joshua's score was two-thirds of Emily's.

A monk set out from a monastery in the valley at dawn. He walked all day up a winding path, stopping for lunch and taking a nap along the way. At dusk, he arrived at a temple on the mountaintop. The next day the monk made the return walk to the valley, leaving the temple at dawn, walking the same path for the entire day, and arriving at the monastery in the evening. Must there be one point along the path that the monk occupied at the same time of day on both the ascent and descent? (Hint: The question can be answered without the Intermediate Value Theorem.) (Source: Arthur Koestler, The Act of Creation.)

You are seeing a map with a scale of $1$ inch $=100$ miles. If two towns are separated on the map by $3.5$ inches, the actual distance between them is a. $100$ miles. b. $350$ miles. c. $350$ inches.

The Monk and the Mountain. A monk set out from a monastery in the valley at dawn. He walked all day up a winding path, stopping for lunch and taking a nap along the way. At dusk, he arrived at a temple on the mountaintop. The next day the monk made the return walk to the valley, leaving the temple at dawn, walking the same path for the entire day, and arriving at the monastery in the evening. Must there be at least one point along the path that the monk occupied at the same time of day on both the ascent and descent? (Source: The Act of Creation, Arthur Koestler)

Round the following number to the given number of significant digits.

349,950 (to 4 significant digits)

Indicate the number of significant digits in each number.

3.56 x 10 raised to -4

List the significant digits for the following number. Then write the number of significant digits.

450.0