Please Helppp!!

An architect is making a deck in the shape below, where 1 unit = 1 foot. If one quart of deck stain can cover 8 square feet, how many quarts need purchased to stain the deck once?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

The table represents a function. what is f(-2)? a.-3 b. -1 c.1 d.3

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