A bag contains 3 blue marbles, 7 red marbles, and 5 yellow marbles. If Joe picks 1 marble from the bag at random, what is the probability that it will be blue?

The probability in Door County WI that a person is born with brown eyes is 4 out of 7. A survey of 2,723 people was taken in Door County. How many people would be expected to have brown eyes? (whole number answer, no spaces)

Evaluate f (9) given f (x) = -x+7

Erik made an error in his homework. He said that 3x + 12 + 4x2 - 3 is equivalent to 7x + 9. What is the correct way for Erik to fix his error? A) He should combine 12 and 3 to get 15. B) He should combine 3x and 4x² to get 7x3.

The width of a rectangular poster is half its length. the area of the poster is 128 square feet. what is the length of the poster?

Fill in the blank (Write in words and use a proper spelling) A positive number times a negative number is a number. The quotient of a negative number and a negative number is a number

What is the product of 4xy and y^2 + 2x? A) 4xy + 4xy^3 B) 8x^2y + 4xy^2 C) 8x^2 + 4xy^3 D) 8x^2y + 4xy^3

Gregg is trying to save $800 for a vacation. He makes $15 an hour and works 40 hours a week for a total of $600 a week. After paying expenses he saves 1 3 of his earnings. Which calculation yields the amount of money Gregg saves each week?

Y = 3x - 1 Y = 2x + 3

Do you have a sample of read, draw and write problems for 4th grade math to review for a test?

For which value of x is the equation 3x + x = 2x + 24 true?