Hong Kong had a population of approximately 7,000,000 people. The area of Hong Kong is approximately 1042 square kilometers. What was the approximate population density of Hong Kong in persons per square kilometer?

Find the variable expression that interprets the math sentence for: Eighty-two plus a number, subtracted from onehundred minus two. Let x represent the unknown number.

Use the information provided to write the standard form eqaution of each parabola. y=2 (x+2) ^2+9

Out of 300 convicted felons at a certain prison facility, 120 are incarcerated for a drug-related offense. if 5 prisoners are selected at random, what is the exact probability that 3 of them are drug-related offenders

The total cost for attending the state fair can be found using the function y = 15 + 2.5x, where x is the number of food tickets purchased. If a family purchases between 5 and 10 food tickets, what is the domain and range of this situation?

Michelle and her family went out to dinner. Their bill, after tax, came to $40. They want to leave a 15% tip. How much money should they leave for the tip?.

What is the volume of a sphere if its r=21m?

Joe and his parents are going on vacation. On the first day they travel 250 miles. On the second day they travel 300 miles. The total miles they must travel is 1000.

Find x when y=3 in the literal equation 3x+6y=24

The sequence below is arithmetic {1,8,27,64}

Angles α and b are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of b if b < α. sin (x 2 + 2x) = cos (2x + 3x 2)