Lili has 20 friends. Among them are Kevin and Gerry, whoare husband and wive. Lili wants to invite 6 of her friends to her birthdayparty. If neither Kevin nor Gerry will go to a party without the other, howmany choices does Lili have?

Autility company burns coal to generate electricity. the cost c(p), (in dollars) of removing p percent of the some stack pollutants is given by c(p)= 85000p/100-p a) find the cost to remove 30% of the pollutant b) find where the function is undefined

The distributive property allows you to say that 3(x − 1) = 3x −

Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2