in fraction and decimal

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?

What expression is equivalent to log3(x+4)

The zoo collects $9.60 for every 24 tickets sold. how much will be collected for 400 tickets?