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?

Sam brought brushes for $8, a palette for $5, and oil paints for $15. He paid 29.82 in all. What sale-tax rate did Sam pay?

Yolanda purchased a prepaid phone card for $25. long distance calls cost 17 cents a minute using this card. yolanda used her card only once to make a long distance call. if the remaining credit on her card is $17.

Factor completely. 15b^2 - 7b - 2

What is the surface area of a triangular prism with base area 15m, height of 3 m, and lateral area of 18m?

Jake has piece of yarn that is 4 feet long. Blair has a piece of yarn that is 4 inches long. Who has the longer piece of yarn?

Witch numbers are multiples of 5? Justify each answer by dividing. a) 15 b) 10 000 c) 137 d) 1001

In a right skewed distribution, a) the median equals the arithmetic mean b) the median is less than the arithmetic mean c) the median is greater than the arithmetic mean d) none of the above

Which two numbers have a least common multiple of 60? A. 12 and 15 B. 6 and 10 C. 6 and 15 D. 6 and 12

Solve 15 ≥ - 3x or 2/5 x ≥ - 2.

A box making machine makes cardboard boxes at a rate of 40 boxes per minute. How many minutes does it take to make 360 boxes?