A coin with a head side and a tail side is flipped 3 times. What is the probability that it lands on tails all 3 times?

The variable z is directly proportional to x, and inversely proportional to y. when x is 4 and y is 13, z has the value 1.2307692307692. what is the value of z when x= 9, and y= 20

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Ijust need to see how to do this. so you don’t have to answer all of them just a step by step explanation of one.