Which inequality matches the description: The Movie Studio Cinema has a maximum capacity of 1350 visitors

What is the first step of an indirect proof of a number that is divisible by two

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?

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?