What are some of the things you should look for when trying to determine whether two events are complementary? Why are these things helpful, or important, here?

Use the diagonals to determine whether a parallelogram with vertices u(2,−2), v(9,−2), w(9,−6), and x(2,−6) is a rectangle, rhombus, or square. give all the names that apply.

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer