5(x + 3) + 3(y + 1)
Please answer! I will mark brainliest to the person that makes more sense!!

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Im literally having a mental breakdown

Find the equation of the ellipse with the following properties. the ellipse with foci at (0, 6) and (0, -6); y-intercepts (0, 8) and (0, -8).edit: the answer is x^2 over 28 + y^2 over 64 = 1