Which infinite sequence is generated by the formula an = (-2)^n?

Find the multiplicative inverse of 8-12i

Find the area of the regular hexagon if a side is 20 cm.

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?