A stack of 400 index cards is 2.16 inches tall. Andre guesses that each index card is 0.025 inches think. Is Andre correct? Compute the thickness of each card.

Factor of polynomial. 2x^4 + 4x^3 + 6^2

Joshua has $1,000,278. Part A. He takes 12.90% out to buy something. How much money did he spend, and how much does he have left? Part B. Explain your answer

The density of an object can be found using the formula below, where d is the density, m is the mass, and V is the volume. d=m/V A block has a mass of 32.25 g and a volume of 12.9 cm3. What is the density of the block? A. 2.5 g/cm3 B. 0.4 g/cm3 C. 2.

What is the solution to the system? { x+3y-z = 2 4x + 2y + 5z = 1 3x+z = 12

Chuck is making a poster about polyhedrons for his math class. He will draw figures and organize them in different sections of the poster. Chuck wants to draw three - demonsional figures whose lateral faces are rectangular.

What does 12 times a number mean as an expression?

Emma seys that the preduct of a 3-digit number and a 1-digit number will be either a 3 digit number or a 4 digit number. Does Emma's statement make sense

Work out the value of these two questions: 1) 3^2 + 2^3 2) 2^4 - 3^2

What is 5 1/4 divided 2 2/7

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.