Preciso só da resposta da questão 6 por favor me ajudem

Which of the following expressions is equivalent to -1/4y - 2 1/4 + 1/2 (4-2y)? a. -3y + 2b. -3 1/2+4c. -4 1/2y+2d. -4 1/2y+2show ur work

In north america, most winter storms form when cold, dry air from interacts with warm, moist air from

5. what is a red giant? can our sun become a red giant? why or why not?