Jamaal has 3 blue shirts 4 red shirts and 5 black shirts he takes a shirt out of his dresser leaves out then takes another shirt out what is the probability that he chose a red shirt then a black shirt

What are the possible rational zeros of [tex]f(x) = x^4+2x^3-3x^2-4x+18[/tex]

Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)- 144x+360 what am i doing wrong?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?