Aparcel of land is in the shape of a rectangle with length l(in feet). sixty-five percent of the length is waterfront and 70 feet of the length is not waterfront. write and solve an equation to find the length of the parcel of land.

1. are the triangles similar and if so why? what is the value of x? show your work.

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.

Afrequency table of grades has five classes (a, b, c, d, f) with frequencies of 3, 13, 14, 5, and 3 respectively. using percentages, what are the relative frequencies of the five classes?