The perimeter p of a regular hexagon varies directly with the length l of one side of the hexagon. what is an equation that relates p and l?

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!