HELP its due today Please help

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?

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

Iwill give you ! what is the measure of ∠v ?