The cost of 5 books is 71$ . what is the cost of each book

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true

50 points~ ! i have to turn this in tomarrow

Consider the image of klmn for the translation (x, y) → (x – 2, y – 1). what is the ordered pair of l′?