A bag contains 1 red, 1 yellow, 1 blue, and 1 green marble What is the probability of choosing a green marble, replacing itand then choosing a red marble

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Which of the binomials below is a factor of this exression? 16x^2+40xy+25y^2 a.4x-5y b. 2x-5y c.4x+5y d.2x+5y