Why is it important to take a random sample of the population you want to study?

Write the number - my number has 2 hundreds and the tens digit is 9 more the one digit?

Which expression represents the phrase 12 more than a number times 16

What is - 3 (4x + 3) + 5x

Two faces of a six-sided die are painted red, two are painted blue, and two are painted yellow. The die is rolled three times, and the colors that appear face up on the first, second, and third rolls are recorded.

Find the zeros of the polynomial (5x-2) (x2-1)

3x+2y+2x when x = 20 and y=-3

A 4-pound bag of sugar contains 454 one-teaspoon servings and costs $3.49. A batch of muffins uses 1/4 cup of sugar. How many batches can you make if you use all the sugar? What is the cost of sugar for each batch? (1 cup = 48 teaspoons)

Tom had $84.50 and then spent $12.25 for a music CD, $17.85 for a gift, and CV$15.45 for gasoline. How much did he have left?

Answer quickly for 5 star and brainliest! A hot air balloon is 10 meters above the ground and rising at a rate of 15 meters per minute. Another balloon is 150 meters above the ground and descending at a rate of 20 meters per minute.

A recent poll shows that 35% of adults are in favor of increased funding for education. The number of adults surveyed for the poll was 260. How many of the adults surveyed were in the favor of increased funding for education?