Brian works in a lab, and fills an empty cylindrical flask with 200 cubic centimeters of liquid. The flask has a
radius of 3 cm and a height 12 cm. What percent
of the volume of the flask is not filled with liquid?
(Use π=3.14
. Type in your answer rounded to the nearest whole percent.)

Design a number line containing five (5) points2.benin, one of the smallest countries in africa, has a total area of 43,475 square miles. the population of the country was recently estimated at 10,160,555. about 3,657,790 people live in rural areas. the country has only about 870 miles of surfaced roads. a. round off the total population to the nearest hundred thousand people. b. round off benin’s area in square miles to the nearest thousand. c. round off the number of miles of surfaced roads to the nearest ten. d. round off the number of people who live in rural areas to the nearest million.

Give me the equations of two lines that have the same slope but are not parallel.

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?