20 blue pencils are placed in a box containing an unknown number of red pencils. 15 pencils are removed at random and 5 are blue. Based on this is it reasonable to assume that the number of red pencils was 40.

Jordan has 4/5 as many DVDs as Joseph. If Jordan has 56 DVDs, then how many does Joseph have? explain your answer

Graph the function. Identify the vertex and axis of symmetry. f (x) = - 2x^2+2x-1

Shelby tossed 3 quarters into the air. What is the probability that all 3 quarters will land heads up

The standard deviation of the sampling distribution of x overbarx , denoted sigma subscript x overbarσx , is called the

Brandon makes lemon water by adding of a cup of sliced lemon to 2 cups of water. At this rate, how many cups of sliced lemon would he need to add to 12 cups of water?

Your macaroni and cheese recipe calls for 1 2/3 cups of milk. You're having company and you need to quadruple the recipe. How much milk will you need?

Math will give medals Which of the following are reasonable answers for the product of two negatives and a positive? 20 10 -20 -10

Ashely walks 2 1/2 miles around a lake around three times a week. If Ashley walks around the lake in 3/4 hour, what is her rate of speed? (Hint: Use the formula r = d/t, where the r is rate, d is distance, and t is time.

Solve for d. h + 4 d = 5b A) d = bh + 5 B) d = h 5b C) d = h + 4 5b D) d = h - 4 5b

Kate jump 225 times in 3 minutes