Simplify using PEMDAS
5+6•3-1

Hello, i need compare km^2 and km. what's difference in this?

Sara is flying a kite at the park. the angle of elevation from sara to kite in the sky is 53° and the length of the string is 32 feet. of sara is 5 feet tall how far off the ground is the kite

If two points are given,then exactly one line can be drawn through those two points.which geometry term does the statement represent