What are all the subsets of the set? {–3, 6} a). empty set, {–3}, {6} b). empty set, {–3}, {6}, {–3, 6} c). {–3}, {6} d). {–3}, {6}, {–3, 6}

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2