Which of the following two-dimensional shapes can be rotated to create a cone?

Right triangle
Square
Circle
Ellipse

Ernest is purchasing a $175,000 home with a 30-year mortgage. he will make a $15,000 down payment. use the table below to find his monthly pmi payment.

Can someone check if i did this correct. it’s number 4 if you’re wondering.

The vertex of this parabola is at (-2,-3). when the x-value is -1, the y-value is -5. what is the coefficient of the squared expression in the parabola's equation?