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Express each of the following percentages as a decimal. (a) \(8.75 \%\) (b) \(4 \frac{1}{8} \%\) (c) \(\frac{4}{5} \%\)

There were four different sections of Financial Mathematics 101 offered last semester. In section \(\mathrm{A}, 31\) out of 38 students passed the class; in section B, 47 out of 56 students passed the class; in section \(\mathrm{C}, 34\) out of 45 students passed the class; and in section \(\mathrm{D}, 45\) out of 52 students passed the class. Compare the passing rates in each section and rank them from best to worst.

A 250 -piece puzzle is missing \(14 \%\) of its pieces from its box. How many pieces are in the box?

At the Happyville Mall, you buy a pair of earrings that are marked \$6.95. After sales tax, the bill was \(\$ 7.61\). What is the tax rate in Happyville (to the nearest tenth of a percent)?

For three consecutive years the tuition at Tasmania State University increased by \(10 \%, 15 \%,\) and \(10 \%,\) respectively. What was the overall percentage increase of tuition during the three-year period?

For three consecutive years the cost of gasoline increased by \(8 \%, 15 \%,\) and \(20 \%,\) respectively. What was the overall percentage increase of the cost of gasoline during the threeyear period?

A shoe store marks up the price of its shoes at \(120 \%\) over cost. A pair of shoes goes on sale for \(20 \%\) off and then goes on the clearance rack for an additional \(30 \%\) off. A customer walks in with a \(10 \%\) off coupon good on all clearance items and buys the shoes. Express the store's profit on these shoes as a percentage of the original cost.

Home values in Middletown have declined \(7 \%\) per year for each of the past four years. What was the total percentage decrease in home values during the four-year period? Round your answer to the nearest tenth of a percentage point.

Over a period of one week, the Dow Jones Industrial Average (DJIA) did the following: On Monday the DJIA went up by \(2.5 \%,\) on Tuesday it went up by \(12.1 \%,\) on Wednesday it went down by \(4.7 \%,\) on Thursday it went up by \(0.8 \%,\) and on Friday it went down by \(5.4 \% .\) What was the percentage increase/decrease of the DJIA over the week? Round your answer to the nearest tenth of a percentage point.

Over a period of one week, the Dow Jones Industrial Average (DJIA) did the following: On Monday the DJIA went down by \(3.2 \%,\) on Tuesday it went up by \(11.2 \%,\) on Wednesday it went up by \(0.7 \%,\) on Thursday it went down by \(4.8 \%\) and on Friday it went down by \(9.4 \% .\) What was the percentage increase/decrease of the DJIA over the week? Round your answer to the nearest tenth of a percentage point.