Which example would be likely to give a valid conclusion? a The teacher displays the class's test scores in stem-and-leaf plot.
b People leaving the library are asked if they like to read.
c Eight tall people are measured to find the height of a 5th grade student.
d Five students are asked how tall they are.

The roots of the function f(x) = x2 – 2x – 3 are shown. what is the missing number?

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?