What is 2 to the negative third power

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters .

Tod does not have any cookies. david gives jeff 8 cookies. then he splits half of the cookies he has left with tod. david let’s c represent the number of cookies that he starts with. he finds the number of cookies that tod has is 1/2 the difference of c and 8. write an expression to represent the number of cookies that tod has.

Find the area of the regular hexagon if a side is 20 cm.