Find the greatest common factor.
42²x² + 42²x+ 40²
Enter the correct answer.

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

Which ordered pair (c,d) is a solution to the given system of linear equations- c+2d=13 -9c-4d=-15

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}