Assume that the total number of dollars spent continues to multiplied by 3 each year after 1966. Given the US Budget at the end of 2015 (t = 54) was approximately 3,800,000,000,000 (or 3.8 x 1012 ) dollars, is this assumption that NASA spending multiplied by 3 every year reasonable? Explain your reasoning in full sentences.

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.