Expand the polynomial (x2 − y2)2 + (2xy)2 then simplify by combining like terms

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9