Natalie draws two cards from a standard deck of cards, one at a time. what is the probability that she will not draw a red card either time?

Anyone know? will mark brainliest if correct!

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

Which of the following equations is equivalent to x/3-6/x=1