Factor the expression:
8x3 + 4x2 - 2x - 1
(2x + 1)(2x + 1)(2x - 1)
(2x + 1)(2x - 1)(2x - 1)
(4x + 1)(x - 1)(2x + 1)
(4x + 1)(x + 1)(2x - 1)

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost

The table below shows the number of free throw shots attempted and the number of shots made for the five starting players on the basketball team during practice. each player's goal is to make 80% of her shots.