What is the probability of picking a black card out of a standard deck of 52 playing cards

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Combine like terms to make a simpler expression 3z+z

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)