The mathematics department sponsors Math Family Fun Night every year.  In the first year, there were 35 participants.  In the third year, there were 57 participants.  Write an equation that can be used to predict the number of participants for any number of years.  Use your equation to predict the number of participants expected in the 5th year.

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?