The Douglas family lives in Hillville. They drive 160 miles due south to visit relatives in Southville. Then they drive 120 miles due west to visit some friends in Franklinville. Finally, they take a direct route from Franklinville back to their home. How many miles is the entire trip?

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 solution of this system of equation -7x+y=-20 9x-3y=36

9/10 divide by -3/15 as a mixed number