Can someone please check my answers? Thanks! :)

Question

1.) Which of the following inequalities is true for all real values of x?

a.) x^2≤x^3
b.) 2x^3≤4x^2
c.) 4x^2≤94x)^2
d.) 4(x-3)^2≥4x^2-3

My answer: B.

2.) Which of the following inequalities is true for all real values of x?

a.) (5x)^2≥5x^2
b.) x^6≤x^7
c.) 5x^2≥2x^3
d.) 6(x-5)^2≥6x^2-5

My answer: D.