Convert 21 / into a decimal

Suppose you have 10 skittles. 5 green and 5 red. You choose 4 without looking. What is the probability that all 4 skittles will be green?

A ruby throated humming bird flaps its wings 159 times in three seconds. How many times does the ruby throated humming bird beat its wings per second

Troy made a scale drawing of the Statue of Liberty which has an actual height of 305 feet. He decides to use a scale in which 1 inch represents 25 feet. What is the height in inches of Troy's drawing?

Two positive improper fractions are multiplied. Is the product sometimes, always or never less than 1. explain

What is the surface area of a pyramid thr side lenghths of the base are equal 7 is the base 5 is the side length

Which words make up the adverb phrase in the sentence? Which word does the adverb phrase modify? Throughout the thunderstorm, my little puppy whined softly. A. Throughout the thunderstorm; modifies whined B. my little; modifies puppy C.

How to express 245,600,000,000 in scientific notation?

Write y - 2x = 1/2 in slope intercept form

What is the solution of 4-6x≥-8 A.) x≥2 B.) x≤23 C.) x≤2 D.) x≤-2

What is 345.432 plus three hundreds?