For the curve y =x^2, what is the slope of the tangent at x=3

What is the equation of a vertical line passing through the point (−5, −1)? y = −5 y = −1 x = −5 x = −1

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )