Which of these elements could not form in the sun and would have to be formed in a supernova

a) hydrogen (atomic number 1)

b) uranium (atomic number 92)

c) helium (atomic number 2)

d) oxygen (atomic number 8)

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

Which graph represents the equation y =4x

Given that abcd is a rhombus, what is the value of x?