In a year, almost a billion people on the planet didn't have access to clean drinking water. If there were 4.7*10^9 people in the world, then approximately what percent of them lived without clean drinking water

Scarlet has a box with 16 black pens and 8 red pens. The probability that a pen randomly picked from the box is a red pen is___ Scarlet uses a six-sided die to find the probability that each color of pen is picked.

What is the interquartile range of the following data set? 78, 90, 456, 676, 111, 381, 21

Which number is a factor of 18? 7 4 3 5

Which of the following is solution to the compound inequality below?

Possible rational roots for 2x^3 + 5x^2 - 8x - 20

True or false. cavalieri's principle states that prisms with differently shaped bases can also have the same volume, so long as their heights and cross-sectional areas are the same.

A day of the week is randomly chosen. find each probability

Sort the ratios listed at the right into bins so that equivalent ratios are grouped together: (Ratios) 40:64 - 5/75 - 14:35 - 24:64 - 6/15 - 65/104 - 66/176 - 12/30 - 15:225 - 6/16 - 15:24 - 48:128 and there are 4 bins.

4. The product of 3 different positive integers is 8. What is the sum of these integers? E. 7 F. 11 G. 13 H. 14 Difficulty: Medium

Karen read 20 pages of her book in half an hour. if she read for 3 hours at that same rate about how many pages of her book can karen read