Write an expression that can be used to find 4 x 275 using mental math and properties of numbers

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Write a story that matches with the expression 42x-5 pls hurry

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?