What is the sixth term of the geometric sequence whose first term is 2 and whose fourth term is -54​

Answer these questions showing your work plz

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

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