3). A bag contains 2 black beads, 5 yellow beads and 3 red beads. Natalie takes a bead at random from the bag, records its colour and replaces it.
She does this two more times.
Work out the probability that, of the three beads Natalie takes, exactly two are
the same colour.

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.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Describe a situation that you could represent with the inequality x< 17