Give the meaning of the metric prefix.hecto
A. Hundredth
B. Thousand
C. Ten
D. Hundred
Answer: D
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Find the probability.The chart below gives the cost and number of vehicle tags sold in each city. 
One car is selected at random from the cars with vehicle tags from these cities. What is the probability that this car has a vehicle tag that cost less than $10? Round to the nearest ten-thousandth when necessary.
A. 0.6164 B. 0.3836 C. 0.3392 D. 0.6608
Use percents, percent equations, and/or percent proportions to solve the application.Students enrolled in a prealgebra class can withdraw within the first two weeks without receiving a grade. If there were 30 students registered for class on the first day and 22 remaining at the end of the second week, what was the percent decrease in students for the first two weeks? Round to the nearest tenth of a percent, if necessary.
A. 36.4% B. 73.3% C. 26.7% D. 63.6%
As part of a study on the metabolism of athletes, 400 college basketball players are randomly chosen and their weights taken. The distribution of the weights is approximately normal. The average weight is 215 pounds and the standard deviation is 15 pounds.Assuming there were no outliers, the range of weights was approximately
A. 180 pounds. B. 400 pounds. C. 60 pounds. D. 90 pounds. E. none of these
Write the number in standard form.It takes approximately 1.578 × 10-5 miles to equal one inch.
A. 0.0001578 B. 0.000001578 C. 157,800 D. 0.00001578