What number represents 50 meters below sea level

Anumber cube is rolled and a coin is tossed. the number cube and the coin are fair. what is the probability that the number rolled is less than 4 and the coin toss is tails?

What is the solution to the inequality? 6x−5> −29, a x> −4 bx> 4 cx< 4 dx< −4

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36