Brainliess asap part a: the area of a square is (9x^2 + 24x + 16) square units. determine the length of each side of the square by factoring the area expression completely. show your work. (5 points) part b: the area of a rectangle is (16x^2 − 25y^2) square units. determine the dimensions of the rectangle by factoring the area expression completely. show your work. (5 points)

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Plzzz answer both questions and i will give you 100 points

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?