Find the value of the variable(s) in each figure. Explain your reasoning. Thank you in advance

What is the range for 31,39,29,34,37,24,36,33,34,28

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?

Find the values of y: 3y^3(y^2+ 2/3y)=0