In September 2009, the cost of three AT&T Trimline * corded phones and two ¡WIN corded speakerphones was $ 84.95. Two of the AT&T phones and three of the jWIN phones cost $ 89.95. Find the price for a single phone of each model.

Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).

Write the following as a base and exponent

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1