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A city has a population of 6,688 people. The area of the city is approximately 7.267 square miles. How many people per square mile live in the city? Be sure to include units.

87. In how many different ways can you make exactly $0.75 using only nickels, dimes, and quarters, if you must have at least one of each coin? A. 2 B. 4 C. 6 D. 7 E. 12

Solve the absolute value equation I2-3xl=6-x

What two integers are between the square root of 6?

What is the number of possible permutations of 5 objects taken 2 at a time? A. 10 B. 20 C. 60 D. 120

Is the number 29 prime or composite? prime composite

Consider the function f (x) = 5 (x - 4) + 9. Determine f (2b).

Use trigonometric identities to rewrite the equation sec theta / csc theta = 1

What times what equals 150 but also what plus what equals 31

A college student needs 11 classes that are worth a total of 40 credits in order to complete her degree. The college offers both 4-credit classes and 3-credit classes. How many 4-credit classes does this college student need to complete her degree?

When must a system of linear equations be solved algebraically, not graphically? Whenever the solution to a system does not have coordinates, it can be difficult or impossible to find the precise answer through graphing.