Three ping-pong balls are stored in a cylinder. The cylinder has a diameter of 42 millimeters (mm) and a height of 125
mm. Each ping-pong ball has a diameter of 40
mm. The space within the cylinder, in cubic millimeters, not occupied by ping-pong balls is kπ
cubic millimeters. What is the value of k
?

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.

What is the multiplicative rate of change of the exponential function shown on the graph?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers