At a summer camp 23 of the boys and 17 of the girls can swim. There are 9 boys and 11 girls at the camp who cannot swim.
What is the ratio of the number of children who can swim to the number of children who cannot swim?

Find all the values of x that make 0.1x + 0.25(102 - x) < 17.10 true.

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.

Julie was able to walk 16 km through the zoo in 6 hours. how long will it take her to walk 24 km through the zoo?