the equation y=19(1.057)057)^x represents book sales in billions of dollarssince 1990. Let x represent the numbers of years. mlet x=0represent book sales in 1990. what were total sales in billions of dollars, in 2010?

Closing a credit card usually _your debt ratio. a. increasesb. decreasesc. improvesd. has no effect on

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.

Events a and b are independent. the probability of a occurring is 2/5. the probability of b occurring is 1/4. what is p(a and b)?