You organize a garage sale. you have $30 at the beginning of the sale. you earn an average of $20 per hour. write an equation that represents the amount of money y you have after x hours.

Which statements are true? see picture

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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