If you flip a coin 30 times, what is the best prediction possible for the number of times it will land on tails?

If you could answer these your a life saver

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle.he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20