Aservice club is organizing a concert to raise funds for a retirement home. the club determines that the revenue from the concert can
be represented by r(x) = 0.0027x8 - 125, where x is the number of tickets sold. the cost to put on the concert is represented by the
function c(x) = 21x + 11,305.
which of the following functions describes the funds raised. ax), as a function of the number of tickets sold?