What is the domain of the function represented by the graph?

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?

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?

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?