The table shows the cost y (in dollars) of x pounds of sunflower seeds. ​

​ What is the missing value, a, that makes the table represent a linear function?

Pounds, x ​ ​Cost, y
​ 2 ​ 2.80
​ 3 ​ a
​ 4 ​ 5.60

!! 10 ! a westbound jet leaves central airport traveling 635 miles per hour. at the same time, an eastbound plane departs at 325 miles per hour. in how many hours will the planes be 1900 miles apart?

Which rotation about its center will carry a regular hexagon onto itself

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.