How do you do this? i'm bad at math : )

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.

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Which expression shows the sum of the polynomials with like terms grouped together