The sample variance is 18.7. what is the sample standard deviation? answer to two decimal places.

An equation representing lyle’s hedge-trimming business is a = 12n - 300 where a is the amount of profit or loss in dollars and n is the number of hedges trimmed. how would the graph of lyle’s business change if the equation a = 10n - 300 represented his business? the graph would be flatter. the graph would be steeper. the graph would start closer to the origin. the graph would start lower on the y-axis.

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

Can someone me with this graph problem by the way i need to know the answers by today since this assignment is due ! !