A certain volume of water contains 100,000 hydrogen atoms and 50,000 oxygen atoms.

How many hydrogen atoms are in a volume of water containing 4,000,000 oxygen atoms?

Find the sum of the first 7 terms of the following series, to the nearest integer. 15,3, 3/5

X - 4 = 10 A) x = 3 B) x = 6 C) x = 12 D) x = 14

A rectangular sheet of metal has identical squares cut from each corner. The sheet is then bent along the dotted lines to form an open box. The volume of the box is 420 in. 3.

I am stuck on this problem and I do not know what to do

A number k is at least 5. Write this word sentence as an inequality.

What is the probability that a student randomly selected from a class of 60 students will be a male who has brown hair? 1) One-half of the students have brown hair. 2) One-third of the students are males.

What is the square of - 2/9

On the first day of summer the height of a plant was 9 inches long at the end of summer the plant was 3 3/4 feet the height of the plant at the end of the summer is how many times the height of the plant at the beginning of the summer

Write the numbers in order from least to greatest: 0.4, 3/5, 0.55, 1/4

Ken is driving down the road when a car suddenly pulls out in front of him. He applies the brake sharply and his car goes into a skid. While the car skids, it decelerates at a constant rate of 15 meters / sec2.