Write the number with the least value using the digits 1 through 9.use each digit only once.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.