Find the cosine of ∠I. Write your answer in simplified, rationalized form. Do not round.
cos (I) =

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Which equation represents the model shown? a)1/3 divide 1/6 = 2 b)2/3 divide 1/6 = 2/18 c)1/3 divide 1/6 = 1/18 d)2/3 divide 1/6 =4

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?