Rufus earned $230 delivering newspapers during the summer. he bought 5 movie passes worth $15 each from his newspaper money. how much money was left after he bought the movie passes?

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1

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.

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?