Find the value of x if (4/7)^-3 * (16/49)^-1 = (4/7)^n-1

True or false? many triangular shapes can be circumscribed about a given circle

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.