Sarah is taking 32 students on a trip. She provides snacks to eat—Granola cone in-box of 8ans cost 2.50 per box. Apple comes in bags of four and costs 1.50 per bag

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u

I'm confused on this could anyone me and show me what i need to do to solve it.

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.