Which expression represents the number of ways that a president and vice president can be chosen out of a group of 15 people?

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?

Answer asap! show all work! find the number of complex roots, the possible number of real roots and the possible rational roots of the polynomial function. then, solve for all roots. x^3 + 2x^2 + 3x + 6 = 0