Evangeline drove 500 km from Windsor to Peterborough 5 h 30 min. She drove part of the way to steady speed of 100 km/h and the rest of the way at 80 km/h. How far did she travel at each speed?

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

What is the standard form of -5x^2+2x^4-11+x^3+3x

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.