How do I write two hundred fifty million in expanded notation using powers of ten

Ms. Groves has trays of paint for students in her art class. each tray has 5 colors. one of the colors is purple. what fraction of the colors in 20 trays is purple?

Y = 3 (x-2) (x + 1) (x - - 4)

Suzanne folded 12 towels. If Allison folded 4 times as many towels as Suzanne, which number sentence shows how many towels Allison folded? A. 12 * 12 = 144 B. 4 * 12 = 48 C. 4 * 4 = 16 D. 12 + 4 = 16

Use the substitution method to solve the system of equations. Choose the correct ordered pair. x + 3y = 10 y = x + 2

Let g (x) = 2x and h (x) = x2+4. Find the value. (hog) (1)

What is the solution to the system of equations? Use the substitution method. {y=-2x+5 {3x-4y=2 Enter your answer in the boxes.

Absolute value of - 1 + 3i

Round 64,569 to the thousands

Keenan received two cube shape packages in the mail. The first package measured half the side lengths of the first. What was the volume of the second package Keenan received?

Dan was 8 years old when his sister was born. Now the sum of their ages is 56. Write an equation to represent this problem. Let the sister's age be s.