I am trash. No but seriously can someone help meh?

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?

Which of the following is not a subset of {1,2,3}?

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?