A pen holder contains 12 identical pens, 6 of which do not write. a child randomly selects a pen, replaces it, and selects again. find the probability that both pens do not write. (enter your probability as a fraction.)

Why do you think the coefficient is called constant of variation?

Which of the following polynomials has zeros at x = - 4 and x = 7? 4x 2 - 7x - 11 4x 2 - 49 7x 2 - 4x + 28 x 2 - 3x - 28

Atticus wants to buy of a square yard of wrapping paper. The paper costs $2.40 per square yard. How much will Atticus spend on the wrapping paper? a.$1.60 b.$4.80 c. $7.20 d. $9.20

A local hamburger shop sold a combined total of 525 hamburgers and cheeseburgers on Monday. There were 75 more cheeseburgers sold than hamburgers. How many hamburgers were sold on Monday

3x + 4 + 2x = 5 (x - 2) + 7

Every cupcake Jake bakes weighs 0.45 pounds how much will a box of 100 Cupcakes weigh

The surface area of the given cube is 150 square feet. a) 5 cubic feet b) 25 cubic feet c) 125 cubic feet d) 625 cubic feet

If x=7+root 40, find the value of root x+1by the root of x

The last time andy went bowling he had a mean score of 158 per game. After 3 games Andy has a total score of 473 He thinks he needs to score over 160 in game 4 to get a mean score greater than 158. Is he correct? Show a check of working

8*{[ (7+4*2-[ (11-7) * 4]}