138.4divided by16 show works it possible to show your work

Factor this polynomial completely x^2-64

Assume that 1400 births are randomly selected and 1378 of the births are girls. use subjective judgment to describe the number of girls as significantly high, significantly low, or neither significantly low nor significantly high. choose the correct answer below. a. the number of girls is neither significantly low nor significantly high. b. the number of girls is significantly high. c. the number of girls is significantly low. d. it is impossible to make a judgment with the given information.

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')